Port Superchic index and doxygen fixes from master
This has been ported from master as cherry pick of svn commits by Phil Ilten:
- LbSuperChic - Updated documenation for Doxygen -- git-svn-id: svn+ssh://svn.cern.ch/reps/lhcb/Gauss/trunk@207970 4525493e-7705-40b1-a816-d608a930855b
- SuperChic - Updated indexing bug (non-issue) and source location -- git-svn-id: svn+ssh://svn.cern.ch/reps/lhcb/Gauss/trunk@207969 4525493e-7705-40b1-a816-d608a930855b