added next-page preview, some code rearrangements, preparation for additional output on secondary window, added page-navigation with arrow keys
fundamental functionality completed: can view pdf slides now, use remote control to switch pages, peek on next slide etc
added snwoflakes
fianl versio with snowflakes and stuff working as expected
some cleanup in GUI and files
renamed test --> FPW (Fancy Presentation Viewer)
improved directory hierarchy
Readme
Merge branch 'master' into presentation_viewer