Fixed crashes with GitHub button on Linux
Merged Linux fixes
Filter box now remembers its contents
Added assignee filtering and null checks
ParseException type, improved error handling
More robust persistence of filter string
fixed gc circular ref issue
Fixed crash brought about by having no ungrouped labels
fixed circular ref in milestone dialog
Changed UserConfigurations to static
Added parent references to TurboIssue
pause issue update polling during refresh
add new line after Edited Description in issue change log
Implmented parent Issue processing on Issue update
cancel previous autoupdate on relogin
Access modifiers
Factored code for creating menus and handling logins into a new class
Newly-created labels default to being open; fixes #11
UI elements requiring login are disabled on application start
Assignee moved above labels and hidden when not applicable