Merge pull request #8 in CASA/casaviewer from CAS-12669 to master
* commit '34a2028a2c0f8938be494e9f18ec6952e9ed3a31':
changes for datapath argument (CAS-12669/CAS-13078)
bamboo decided this ticket has had enough time (CAS-12669)
change grpc unload(id) to accept a panel id (CAS-12669)
substitute casaviewer exe to interpose valgrind (with logging to a file) (CAS-12669)
prevent c-preprocessor skew with CASA6 and CASATOOLS defines; include casa-source valgrind fix (CAS-12669)
set options from other side of grpc connection
finalize first round of changes for interactive clean
start adding interactivemask (CAS-12669)
fix multiple defines of rpc.Id
protocol for clean CAS-12669
track casa6 CAS-12669
