remove left/right mouse button scaling/aspect
fixup typo in 89c7ec514 (resize keyboard shortcut)
Linux: allow to open w/o file,
change default seek-flags to use indexed/cont'd seek
move jack transport commands into header file
unify mouse hide/show interface
Document Keyboard Shortcuts in X-menu
rework video seeking - add index table.
change frame-numbers to 64bit

so far only internally.
some timecode sources still use 'long int'
various small fixups (NOOPs, compiler warnings)

thanks so clang scan-build
fix some small X11 related mem leaks
remove seekflags (always use indexer)
remove QT seek menu
decrease max possible OSD font size
OSX bundle: strip binaries
windows menu.
separate video-mode enum
allow to start w/o filename - and related updates:

* show OSD message on Linux/Windows (-> context menu)
* fix (work-around) re-display after index
introduce option for keyframe limit
display version in context menu.