Fixed the IsEmpty function to handle a non existing table.
Fixed persistence spelling for a proper nil object test
Fixed name case mismatch in file resolving loop
Added missing file list to database for Picasa files with no Lightroom equivalent.
Fixed file/album header mismatch in Metadata selection dialog
Removed blocking recursion guard in Metadata selection dialog
Added 'selected' metadata key for the selection mechanism in the Metatdata selection dialog
Added TitleCase function to utilities
Switched LrColor from rgb to name parameters
Added extra keys to the File Metadata keys
Added SelectFileDialog to expose Lightroom file selection in the PMI database.
Fixed minor formating bugs in string table
Updated exporting and reseting plug-in preferences