Merge pull request #5 from ddennedy/master

Build improvements for OS X and Windows
Make webvfx producer transparent when adding the transparent=1 property
Cleanup, make all render stategies work, make transparency fully optional
Fix crash in transitions because of missing progressive flag, fix indent
Merge branch 'master' of https://github.com/ddennedy/webvfx

Conflicts:
	mlt/service_manager.cpp
	mlt/service_manager.h
	webvfx/effects_impl.cpp
Fix painting with Graphicsview, fix transparency issue with image render
Merge branch 'master' into jbm

Conflicts:
	mlt/webvfx_producer.cpp
Fix build on Qt 5.
Fix comment about background color.
Cleanup qdebug and indent.