#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...

README.md

@@ -196,6 +196,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `git_pull_clone` – clones instead of pulling when the repo does not exist;
 * `git_pull_uncommitted_changes` – stashes changes before pulling and pops them afterwards;
 * `git_push` – adds `--set-upstream origin $branch` to previous failed `git push`;
+* `git_push_different_branch_names` – fixes pushes when local brach name does not match remote branch name;
 * `git_push_pull` – runs `git pull` when `push` was rejected;
 * `git_push_without_commits` – Creates an initial commit if you forget and only `git add .`, when setting up a new project;
 * `git_rebase_no_changes` – runs `git rebase --skip` instead of `git rebase --continue` when there are no changes;