Merge pull request #21 in CASA/casaviewer from CAS-13460 to master
* commit '36dd5a3a0972929c460ef81bb953261f53e753b7':
clean up splatalog db search (CAS-13460)
log location of splatalogue offline db (CAS-13460)
Mutex.cc has left the building (CAS-13460)
casacore slipped ahead (?) of master (CAS-13460)
work around MSIter2.cc compile error: casa-source/code/msvis/MSVis/MSIter2.cc:427:5: error: ‘curPolarizationIdFirst_p’ was not declared in this scope (CAS-13460)
move colormaps into viewer app (CAS-13460)
