1.8 Features (createSeriesFolderStructure)

Finished cSFS-Functionality
Added ActionElement for this
1.8 Bugfixes

Added CalcQuality-Button to EditSeriesFrame
Added forceDBUpdate Funktion to MovieList
1.8 Features (PreviewSeriesFrame)

JCoverChooser only reacts to left MouseButton
Added RightClickMenu to Cover
Added all the Options to SeriesMenu, SeasonMenu, ExtrasMenu and
PopupMenu in PreviewSeriesFrame
Added getInstance to MainFrame (IntermediateBlocking without direct
access)