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
Version bump (5.11.1), changes in installer script
Update deployment for Windows version

Change installer script according to recommendations from windeployqt
utility. Now we use Qt 5.3 for building for all platforms.
Update changelog, add 5.11.1 section
Fix GrabCalculationTest
Remove unnecessary includes
Remove libudev and librt dependencies

They are not needed for Prismatik immediately, only for its
dependencies.
Fix trayless mode
Add basic statistic to GrabberBase
Move LogWriter class to separate file
Fix wrong debug output formatting
Refactor grabber classes

Get rid of TimeredGrabber, move its functionality to GrabberBase.
Fix compilation on Windows platform
Settings class refactoring.
Fix tests after Settings redone.
Additional Settings fixes