From Valeri fine:

1. New class TQtPadFont, TGQt:
    - Move the Qt font operations from the TGQt  class to the new dedicated TQtPadFont
 
2. TQtBrush, TGQt
    - No need for the special Win32 case for Qt4 to manage the ROOT fill styles
 
3. TQtRConfig.h
  - Adjust CPP flags to built Qt layer on Mac OS with X11 version of Qt4
 
4. TQtWidget 
   - Remove the clash with Qt4 shared lib name. It fixes the ROOT context menu issue.
   - Fix the logical expression  bug


git-svn-id: http://root.cern.ch/svn/root/trunk@24506 27541ba8-7e3a-0410-8455-c3a389f83636