Global RPL Functions, precise self-review (by Phil, requested by Patrick).
The only non-trivial edits were removal of two unused icons. See below.

Really minor coding preference changes and minor comment revisions:

  Q3GUI/Workspace.cpp
  QtRpl/RplDlgMgr.cpp
  QtRpl/RplListView.cpp
  QtRpl/RplPaletteDlg.cpp 
  QtRpl/RplSetDlg.cpp
  QtRpl/RplSetDlg.hpp
  Rpl/GlobalRplSetMgr.cpp
  Rpl/RplObj.cpp
  Rpl/RplSetMgr.hpp
  RplExpression/RplExpression.cpp 

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QtRpl/RplIcons.hpp
QtRpl/RplIcons.cpp
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Remove initial version of RplIcons for Global RplObjs.  We ended up instead
compositing the conventional RplIcon with the "Globe" icons (both the 
green and 'plain' globe icons).

  const QPixmap _globalFunction;      // Not used, see note above.
  const QPixmap _globalUtilGroup;     // Not used, see note above.

  static const char* _ovalF_Green_data[];
  static const char* _ovalF_Orange_data[];
  static const char* _ovalU_Green_data[];
  static const char* _ovalU_Orange_data[];

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