according to Axel we won't need allDict.cxx compiled in libCore. Remove it.


git-svn-id: https://root.cern.ch/svn/root/trunk@48650 27541ba8-7e3a-0410-8455-c3a389f83636
decouple Cocoa backend from GL, so we can compile minimal Cocoa version not
depending on GL.


git-svn-id: https://root.cern.ch/svn/root/trunk@48651 27541ba8-7e3a-0410-8455-c3a389f83636
filter out includes for qt plugins.


git-svn-id: https://root.cern.ch/svn/root/trunk@48652 27541ba8-7e3a-0410-8455-c3a389f83636