* Make branch deletion URL more like GitHub's, fixes#1397
* Add PR branch deletion integration test
* Do not allow deleting protected branch
* Change http error code to 403 if user has no write rights to repository
* Add check to not panic if forked repository has alrady been deleted
* Show commit status icon in commits table
* Add comments
* Fix icons
* Few more places where commit table is displayed
* Change integration test to use goquery for parsing html
* Add integration tests for commit table and status icons
* Fix status to return lates status correctly on all databases
* Rewrote lates commit status selects
* Fix commit sha1 URL rendering in markdown
* Add unit test for commit sha1 markdown rendering when sha1 has space before it
* Change to better variable name
* Do not allow commiting to protected branch from online editor
* Add editor integration tests for adding new file and not allowing to add new file to protected branch
* Add correct git branch name validation
* Change git refname validation error constant name
* Implement URL validation based on GoLang url.Parse method
* Backward compatibility with older Go compiler
* Add git reference name validation unit tests
* Remove unused variable in unit test
* Implement URL validation based on GoLang url.Parse method
* Backward compatibility with older Go compiler
* Add url validation unit tests