ENH: more changes to Slicer, GenerateCLP, ModuleDescriptionParser, and TCLAP to support building command line modules against an installation.  This currently works with a CVSHEAD ITK. Remaining configuration changes are to install .lib's under <install>/lib/Slicer3 instead of under <install>/lib.  This will make all the packages consistent in how they navigate from where the <Pkg>Config.cmake lives in the installation to the directories for libs, includes, etc.

git-svn-id: http://svn.slicer.org/Slicer4/trunk@5614 3bd1e089-480b-0410-8dfb-8563597acbee