v0.5.1 - Xcode Project/Scheme parsing fixes

Full Changelog

Fixed bugs:

• Buildasaur post multiple comments for the same integration #147
• Schemes not detected when owned by workspace #144

Closed issues:

• Parse workspace as proper XML #148
• Can you put bots or at least triggers under source control? #145
• Can't add Xcode Project/Workspace #140
• Generate Settings UI Dynamically from a JSON #111
• Adaptive sync interval #57

Merged pull requests:

• Proper workspace XML parsing #150 (czechboy0)
• Fixed unrecognized schemes owned by workspace #149 (czechboy0)