Merged in NRAO changes till 16-Jun-2014


git-svn-id: http://casacore.googlecode.com/svn/trunk@21465 6afa274c-0927-0410-9b47-a1284d797885
Reverted to old one until wcslib installations are updated


git-svn-id: http://casacore.googlecode.com/svn/trunk@21466 6afa274c-0927-0410-9b47-a1284d797885
Re-added old function hasPolarizationAxis


git-svn-id: http://casacore.googlecode.com/svn/trunk@21467 6afa274c-0927-0410-9b47-a1284d797885
Added CoordinateUtil::setRestFrequency for CASA-4.2


git-svn-id: http://casacore.googlecode.com/svn/trunk@21468 6afa274c-0927-0410-9b47-a1284d797885
TWEAK: CMakeLists.txt: embed rpath info to avoid LD_LIBRARY_PATH foo
TWEAK: fix missing includes
TWEAK: ms/MeasurementSets/MSSelector.cc: fix size of weight/sigma when selecting polarizations

Not fully tested!
TWEAK: ms/MeasurementSets/MSSelector.{cc,h}: remove now-unused wantedOne_p member
TWEAK: fix exception specification thingie