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.
Add QMAKE_MAC_SDK_OVERRIDE config variable.
Merge pull request #3 from dreamer-dead/wood-mac-fixes

Fix compilation with Mac SDK below 10.9 and clear some warnings.
Change line endings to Unix format
Remove qtserialport

We shall use qtserialport provided by Qt or OS distributives.
Update .gitignore file
Actualize Linux prerequisites in README
Fix dependencies information for building deb package
Use dynamic loading for DX10 and DXGI

Issue: https://github.com/woodenshark/Lightpack/issues/4