Improve work with command line option '--help'

In Windows GUI application doesn't have console stdout/stderr output
even if it's running from command line (i.e cmd.exe). So help message
wouldn't be visible to user. Fix that by using QMessageBox::information
method when built for this OS.
[Adalight] open device in unbuffered mode
Change branding
Firmware final release (version 6)
Prevent blinking (MoodLamp color) after starting Prismatik
Make Settings logging more informative

Add value to logging information. With the same amount of
lines in the log it will be more useful for troubleshooting.
Fix "Mood lamp not saved after restart"

Every time when Change Locale event occurs, Qt repopulates
Mode Combobox with translated items. This causes mode change as it looks
like legitimate user action from point of view of signal handler.
Implement dirty workaround, UI to be reworked soon.

Issue: https://github.com/Atarity/Lightpack/issues/68
Cleanup dead code
Fixed compilation and linkage on Win with MSVS2013 and WinSDK8.1
Add WIN81_SDK_DIR config variable
Use PrismaticMath::round() instead of round().
Minor changes in UpdatesProcessor.{h,c}pp
Rewrite logging code in main.cpp.

Created LogWriter class with all log-specific code.
Removed unnessesary stream.flush() calls and minimized
  time under locked mutex.
Expected no behavior change.
Change information about OS X build prerequisites
Use std::cerr instead of std::cout for any log message.
Move grabbers configuration from defs.h to configure-grabbers.prf project file.
Merge pull request #2 from dreamer-dead/logwriter

Rewrite logging code in main.cpp.
Merge pull request #1 from dreamer-dead/msvs2013_win81

MSVS2013&WinSDK8.1
Merge pull request #7 from dreamer-dead/configure-grabbers

Move grabbers configuration from defs.h to configure-grabbers.prf
Fix compilation with Mac SDK below 10.9 and clear some warnings.