Added auto-updating, added more error-handling, fixed bugs

-Made program detect updates (very similar to PAXChecker)
--GUIs and UpdateHandler copied directly from PAXChecker
-Made GUIs open consistently
--Moved setVisible in Info GUI to EDT
-Fixed issue detecting specific errors in ErrorInfo.java
--Program now correctly detects errors
-Added more errors and information to ErrorInfo.getDebugInformation
-Made Gui window focus on Properties key after submitting a Property to change
-Made Info print out much more information
-Made Gui window not print out stackTrace of errors
-Made Info window not stretch when long error is set
-Changed version to 0.2