diff --git a/Cargo.lock b/Cargo.lock
index d4d648db6b..44204297e0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -63,7 +63,7 @@ name = "base64"
 version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "safemem 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -102,7 +102,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "byteorder"
-version = "1.2.3"
+version = "1.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -115,7 +115,7 @@ name = "bytes"
 version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "iovec 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -131,7 +131,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "chrono"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -506,7 +506,7 @@ name = "mdbook"
 version = "0.2.0-alpha.0"
 dependencies = [
  "ammonia 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "chrono 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "elasticlunr-rs 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.5.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -754,7 +754,7 @@ name = "phf_shared"
 version = "0.7.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "siphasher 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "siphasher 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -956,7 +956,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.14.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.14.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -981,7 +981,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "siphasher"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1072,7 +1072,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "quote 0.6.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.14.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.14.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1097,7 +1097,7 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "0.14.5"
+version = "0.14.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "proc-macro2 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1132,7 +1132,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futf 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "mac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf-8 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "utf-8 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1142,7 +1142,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "futf 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "mac 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "utf-8 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "utf-8 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -1305,7 +1305,7 @@ dependencies = [
 
 [[package]]
 name = "utf-8"
-version = "0.7.2"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -1379,7 +1379,7 @@ name = "ws"
 version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "bytes 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "httparse 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1413,12 +1413,12 @@ dependencies = [
 "checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
 "checksum bitflags 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4efd02e230a02e18f92fc2735f44597385ed02ad8f831e7c1c1156ee5e1ab3a5"
 "checksum bitflags 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d0c54bb8f454c567f21197eefcdbf5679d0bd99f2ddbe52e84c77061952e6789"
-"checksum byteorder 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "74c0b906e9446b0a2e4f760cdb3fa4b2c48cdc6db8766a845c54b6ff063fd2e9"
+"checksum byteorder 1.2.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8389c509ec62b9fe8eca58c502a0acaf017737355615243496cde4994f8fa4f9"
 "checksum bytes 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "c129aff112dcc562970abb69e2508b40850dd24c274761bb50fb8a0067ba6c27"
 "checksum bytes 0.4.9 (registry+https://github.com/rust-lang/crates.io-index)" = "e178b8e0e239e844b083d5a0d4a156b2654e67f9f80144d48398fcd736a24fb8"
 "checksum cc 1.0.18 (registry+https://github.com/rust-lang/crates.io-index)" = "2119ea4867bd2b8ed3aecab467709720b2d55b1bcfe09f772fd68066eaf15275"
 "checksum cfg-if 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "efe5c877e17a9c717a0bf3613b2709f723202c4e4675cc8f12926ded29bcb17e"
-"checksum chrono 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)" = "6962c635d530328acc53ac6a955e83093fedc91c5809dfac1fa60fa470830a37"
+"checksum chrono 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "e48d85528df61dc964aa43c5f6ca681a19cfa74939b2348d204bd08a981f2fb0"
 "checksum clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b957d88f4b6a63b9d70d5f454ac8011819c6efa7727858f458ab71c756ce2d3e"
 "checksum cloudabi 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
 "checksum debug_unreachable 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9a032eac705ca39214d169f83e3d3da290af06d8d1d344d1baad2fd002dca4b3"
@@ -1515,7 +1515,7 @@ dependencies = [
 "checksum serde_json 1.0.24 (registry+https://github.com/rust-lang/crates.io-index)" = "c3c6908c7b925cd6c590358a4034de93dbddb20c45e1d021931459fd419bf0e2"
 "checksum sha1 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2579985fda508104f7587689507983eadd6a6e84dd35d6d115361f530916fa0d"
 "checksum shlex 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "7fdf1b9db47230893d76faad238fd6097fd6d6a9245cd7a4d90dbd639536bbd2"
-"checksum siphasher 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "0df90a788073e8d0235a67e50441d47db7c8ad9debd91cbf43736a2a92d36537"
+"checksum siphasher 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "0b8de496cf83d4ed58b6be86c3a275b8602f6ffe98d3024a869e124147a9a3ac"
 "checksum slab 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "d807fd58c4181bbabed77cb3b891ba9748241a552bcc5be698faaebefc54f46e"
 "checksum slab 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "17b4fcaed89ab08ef143da37bc52adbcc04d4a69014f4c1208d6b51f0c47bc23"
 "checksum slab 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "fdeff4cd9ecff59ec7e3744cbca73dfe5ac35c2aedb2cfba8a1c715a18912e9d"
@@ -1529,7 +1529,7 @@ dependencies = [
 "checksum strum_macros 0.9.1 (registry+https://github.com/rust-lang/crates.io-index)" = "1292d85e688e4696ecb69b2db2648994fb8af266974e89be53cefdf003861a5d"
 "checksum syn 0.11.11 (registry+https://github.com/rust-lang/crates.io-index)" = "d3b891b9015c88c576343b9b3e41c2c11a51c219ef067b264bd9c8aa9b441dad"
 "checksum syn 0.13.11 (registry+https://github.com/rust-lang/crates.io-index)" = "14f9bf6292f3a61d2c716723fdb789a41bbe104168e6f496dc6497e531ea1b9b"
-"checksum syn 0.14.5 (registry+https://github.com/rust-lang/crates.io-index)" = "4bad7abdf6633f07c7046b90484f1d9dc055eca39f8c991177b1046ce61dba9a"
+"checksum syn 0.14.6 (registry+https://github.com/rust-lang/crates.io-index)" = "4e4b5274d4a0a3d2749d5c158dc64d3403e60554dc61194648787ada5212473d"
 "checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
 "checksum tempfile 3.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "c4b103c6d08d323b92ff42c8ce62abcd83ca8efa7fd5bf7927efefec75f58c76"
 "checksum tendril 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "8c1b72f8e2f5b73b65c315b1a70c730f24b9d7a25f39e98de8acbe2bb795caea"
@@ -1555,7 +1555,7 @@ dependencies = [
 "checksum unreachable 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "382810877fe448991dfc7f0dd6e3ae5d58088fd0ea5e35189655f84e6814fa56"
 "checksum unsafe-any 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f30360d7979f5e9c6e6cea48af192ea8fab4afb3cf72597154b8f08935bc9c7f"
 "checksum url 1.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "2a321979c09843d272956e73700d12c4e7d3d92b2ee112b31548aef0d4efc5a6"
-"checksum utf-8 0.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f1262dfab4c30d5cb7c07026be00ee343a6cf5027fdc0104a9160f354e5db75c"
+"checksum utf-8 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)" = "bab35f71693630bb1953dce0f2bcd780e7cde025027124a202ac08a45ba25141"
 "checksum utf8-ranges 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "662fab6525a98beff2921d7f61a39e7d59e0b425ebc7d0d9e66d316e55124122"
 "checksum vec_map 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "05c78687fb1a80548ae3250346c3db86a80a7cdd77bda190189f2d0a0987c81a"
 "checksum version_check 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "7716c242968ee87e5542f8021178248f267f295a5c4803beae8b8b7fd9bc6051"