Add project edit bot property
Update SQL
Implement "project edit bot" for editing items (issues)
Add comments and refactoring to make code clearer (hopefully)
Add a factory class for retrieving the Github object
Use the bot account for the createStatus function
Merge branch 'master' into GitHubFactory
Merge remote-tracking branch 'joomla/GitHubFactory' into project-bot-GitHubFactory-merge-1

Conflicts:
	src/App/Tracker/Model/IssueModel.php
Add support to request a specific bot account from the factory
Get the GitHub object from the GitHubFactory
Fix a wrong function call
Fix misspelled namespace GitHub vs Github
Merge pull request #389 from joomla/project-bot-GitHubFactory-merge-1

Project bot + github factory Fix #337 #383