error checking for repo creation
loading user account image asynchronously to avoid ui slowdown
updating license header
removing debug output
progress indicator and authorise button are now re-enabled within the NSUrlConnection block (upon success or failure) after retrieving user avatar image

this fixes the momentary re-enabling of the authorise button prior to swapping between the non-authorised and authorised account subviews
improved handling of notifications for de-authorisation
adding .gitignore functionality for repo creation
fix for progress indicator in repo creation window not being disabled if request fails, also disabling 'create' button during active request
removing debug output
minor position and description change to .gitignore label in repo creation window
adding protection against multiple callbacks and timer for populating public repos menu
reducing duplicate code when handling user revocation event
implementing enable/disable notifications preference
adding reachability
moving import for MRCreateRepositoryWindowController to implementation file and adding forward declaration
integrating reachability
adding menu validation
Update README.md
creating application support directory for local storage
adding travis configuration