Release of JCBR 0.8.0

Please find this version in the earlier post JCBR: Java Chinese Book Reader. In this version, the following changes are made.

• Add support of Windows and Linux.
• Display the selected book name at the bottom of the bookshelves dialog.
• Make the font of the bookshelves dialog and the TOC dialog customizable.
• Allow language switching on Windows and Linux.