python/hetzner: 0.7.5 -> 0.8.0

New features:

 * Support for retrieving reverse PTRs.
 * Support for subnet-ranges.
 * Add logging (aszlig/hetzner#14).

Fixes:

 * Hide internal methods from the public API.
 * Fix Python 3 compatibility.
 * Fix for creating admin accounts with Hetzner's new login site.
 * Fix __repr__/__str__ issue with some exceptions (aszlig/hetzner#23).
 * Fix login for RobotWebInterface

Changes for the hetznerctl utility:

 * show: Show subnets
 * show: Show reverse PTRs
 * New 'rdns' subcommand for getting/setting/removing reverse-PTRs.
 * Use 'argparse' instead of 'optparse'.
 * Add command for managing admin accounts.
 * New '--debug' flag for printing debugging information.

This also fixes NixOS/nixops#778.

Tested building against Python 2.7 and Python 3.6.

Signed-off-by: aszlig <aszlig@nix.build>
(cherry picked from commit 6841064)
Reason: This unbreaks the NixOps Hetzner target, because the admin
        sub-account couldn't be created on initial deploy.

pkgs/top-level/python-packages.nix

@@ -10061,18 +10061,15 @@ in {
 
   hetzner = buildPythonPackage rec {
     name = "hetzner-${version}";
-    version = "0.7.5";
+    version = "0.8.0";
 
     src = pkgs.fetchFromGitHub {
       repo = "hetzner";
-      owner = "RedMoonStudios";
+      owner = "aszlig";
       rev = "v${version}";
-      sha256 = "1fw7i1z4a39i1ljd9qd4f5p1p3a4257jfglkdpw90xjwl7fdpq42";
+      sha256 = "04q2q2w2qkhfly8rfjg2h5pnh42gs18l6cmipqc37yf7qvkw3nd0";
     };
 
-    # not there yet, but coming soon.
-    doCheck = false;
-
     meta = {
       homepage = "https://github.com/RedMoonStudios/hetzner";
       description = "High-level Python API for accessing the Hetzner robot";