removed running instance check from cli mode
fixed --window in cli mode
added --file argument to --cli mode
prettier output for --help
fix rubberband drawing with no selection
change "avaiable" to "available"
Merge pull request #56 from Sarkynin/master

change "avaiable" to "available"
updated build files
bold text in plugin update dialog
fix typo in help screen
made CMake build bundle on Mac OS X
fix typos in cmake lists
update Info.plist, add high-dpi setting
added qt.conf for mac
updated download dialog for mac
always enable update checking
added icon for add/remove programs
added getPluginDir to ScreenCloud python module
bump version number and copyright year
add check for screen count before moving overlay
make sure plugin dirs are overwritten properly