#652: Add new git_push_different_branch_names rule

Fix #652

* Basic fix for #652
* Finishing work
* Added readme line
* Added test
* My test was stupid...
* Removed redundant lines
* That space...

thefuck/rules/git_push_different_branch_names.py

@@ -0,0 +1,12 @@
+import re
+from thefuck.specific.git import git_support
+
+
+@git_support
+def match(command):
+    return "push" in command.script and "The upstream branch of your current branch does not match" in command.output
+
+
+@git_support
+def get_new_command(command):
+    return re.findall(r'^ +(git push [^\s]+ [^\s]+)', command.output, re.MULTILINE)[0]