Updated minimum required version to 5.2. Added new variables Qt5RequiredLibs to provide libs to check for and msvc only variable Qt5RequiredAdditionalDlls to supply additional dependent dll's to move to the build folder.
Interm Commit - Do Not Use
Refactored maidsafe_find_qt5.cmake script to take a single input argument to check for required libs. Updated submodules
Merge remote-tracking branch 'origin/next' into qt_5.2
Updating submodules.
Updated submodules
Merge remote-tracking branch 'origin/next' into qt_5.2
Updating submodules.
Merge remote-tracking branch 'origin/next' into qt_5.2
Updating submodules.
Updating submodules
Updating submodules.
Updating submodules.
Merge branch 'next' into qt_5.2

Conflicts:
	src/drive
	src/lifestuff
	src/private
	src/routing
Merge remote-tracking branch 'origin/qt_5.2' into next