Use a proper REST API to test for bugzilla credentials
Display git_url in the edit/create page only if git_url specified in xattrs

Adding check to see if git_url in xattrs

Minor bug fix for version checking
Adding ver to edit/new views
Bug fix: bugzilla auth checking kicks even when bz_integration not enabled
Minor refactorings based on Weinan's insight

- Will eventually have to remove get_xattrs in the other pages -> In my TODO list
Merge pull request #30 from thescouser89/version_fix

Version fix