Fix incorrect version displaying in Settings->About

Sometimes Prismatik couldn't read version from Lightpack HID device.
In this case it reopens the device and eventually reads the version
information. Unfortunately, there was an issue that prevented
updating version string in UI more than once, due to "spoiled" template
string.
Update Russian and Ukrainian translations
Fix Mac/Retina problem with screen grabbing
Don't use hardcoded HW version.

Pass LIGHTPACK_HW from command line. Example:
    make LIGHTPACK_HW=6
By default HW version equals 7 (Lightpack version in production)
Firmware, SW (minor) version 6

Files for HW versions 4, 5 and 6.
Fix FW compilation
Update FW build instructions
Fix command line options (i.e '--off') logic

--off option turn off leds in case there is no currently running
instance of Prismatik, or sends message to instance otherwise.
--on option only sends message to currently running instance, if any.

Issue: https://github.com/Atarity/Lightpack/issues/61
Prevent USB activities if application instance is already running
Raise Settings window on top of windows stack after showing
Don't use C++11 due to Mac OS X 10.6.8 support

On OSX platform we have to use libstd++ as stdlib. If we use C++11
compiler generates code that links against libc++ regardless of qmake
options. So, get rid of C++11 while not-so-many modifications are
needed.