* 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
Tamal Saha
Lauris BH