Management of Finder tags and other improvements

- Added NSThread.CallStackSymbols method
- Created module ObjcRuntime which will define the C-level Objective-C Runtime functions.
- Extended NotificationObserver so it can observe Distributed Notifications too.
- Added getting/setting the new Mavericks Tags in NSURL and as an extension of FolderItem.
- Added SystemFinderTags and SystemFinderTagColors to the SystemExtensions module as a workaround to get Finder tags and their corresponding color.
- Improved DebugReports to properly handle Colors and array of Colors with or without alpha channel.
- The QuickStart window now makes the difference between a brand new user and someone who already ran macoslib and set the default message/button accordingly.
- Updated version and release notes
- Removed dependency on DebugReport
- Made some values static for performance
- Temporarily deactivated saving preferences as DebugReport.PropertyList is broken in Mavericks
- Fixed DebugReport.PropertyList to work on Mavericks and other non-Apple OSes