Update news

NEWS.md

@@ -1,46 +1,48 @@
 # tidyr 0.4.1.9000
 
-* `gather_.data.frame(na.rm = TRUE)` now only removes missing values
-  if they're actually present (#173).
+## New functions
 
-* `unnest()` gains a `sep` argument. If non-null, this will rename the 
-  columns of nested data frames to include both the original column name,
-  and the nested column name, separated by `.sep` (#184).
+* `separate_rows()` separates observations with multiple delimited values into
+  separate rows (#69, @aaronwolen).
 
-* `spread()` gains a `sep` argument. If not-null, this will name columns
-  as "key<sep>value". Additionally, if sep is `NULL` missing values will be
-  converted to `<NA>` (#68).
+## Bug fixes and minor improvements
 
-* `unnest()` now works with non-syntactic names (#190).
+* `complete()` preserves grouping created by dplyr (#168).
 
-* `unnest()` gains `.id` argument that works the same way as `bind_rows()`.
-  This is useful if you have a named list of data frames or vectors (#125).
+* `expand()` (and hence `complete()`) preserves the ordered attribute of 
+  factors (#165).
+
+* `full_seq()` preserve attributes for dates and date/times (#156),
+  and sequences no longer need to start at 0.
+
+* `gather()` can now gather together list columns (#175), and 
+  `gather_.data.frame(na.rm = TRUE)` now only removes missing values
+  if they're actually present (#173).
+
+* `nest()` returns correct output if every variable is nested (#186).
 
 * `separate()` fills from right-to-left (not left-to-right!) when fill = "left"
   (#170, @dgrtwo).
 
-* `separate_rows()` separates observations with multiple delimited values into
-  separate rows (#69, @aaronwolen).
-
-* `gather()` can now gather together list columns (#175).
-
-* `unite()` and `separate()` now automatically drop removed variables from
+* `separate()` and `unite()` now automatically drop removed variables from
   grouping (#159, #177).
 
-* `expand()` (and hence `complete()`) preserves the ordered attribute of 
-  factors (#165).
-
-* `complete()` preserves grouping created by dplyr (#168).
+* `spread()` gains a `sep` argument. If not-null, this will name columns
+  as "key<sep>value". Additionally, if sep is `NULL` missing values will be
+  converted to `<NA>` (#68).
 
-* `nest()` now returns correct output if every variable is nested (#186).
+* `unnest()` works with non-syntactic names (#190).
 
-* `full_seq()` now preserve attributes for dates and date/times (#156).
+* `unnest()` gains a `sep` argument. If non-null, this will rename the 
+  columns of nested data frames to include both the original column name,
+  and the nested column name, separated by `.sep` (#184).
 
-* Sequences generated by `full_seq()` no now longer need to start at 0.
+* `unnest()` gains `.id` argument that works the same way as `bind_rows()`.
+  This is useful if you have a named list of data frames or vectors (#125).
 
 * Moved in useful sample datasets from the DSR package.
 
-* Made compatibile with both dplyr 0.4 and 0.5.
+* Made compatible with both dplyr 0.4 and 0.5.
 
 # tidyr 0.4.1