Implement the autoloading for ROOT_MODULES.


git-svn-id: https://root.cern.ch/svn/root/trunk@48385 27541ba8-7e3a-0410-8455-c3a389f83636
- Implement transparency for GL in Pad


git-svn-id: https://root.cern.ch/svn/root/trunk@48386 27541ba8-7e3a-0410-8455-c3a389f83636