Move Delay below the screen, next to Type

Fixes #30
Remove imgshack support
Clean up --help output
Reword help messages
Fixed some typos in CMakeLists.txt
Some clean-ups in docs/html/en/index.html
CMakeLists.txt cleanup
Port to Qt5

CMake cleanups coming
Windows support removed and CMake cleanups
Fix translations
Fix a warning in Core::sleep()
Get rid of a warning in dialoguploader.ui
Remove unused code
Change default preferences shortcut to something more appropriate
Move license to COPYING
Remove debian/
Update Russian translation
No need to mention Qt-based
Move translations to translations/
Normalize style to whatever extent possible..