Merge pull request #876 in CASA/casa from CAS-12276 to master
* commit '6fb9d3a9b2d67f0526186130398ef336e75f9a7a':
use the right tool: iatool, not imtool=imager, CAS-12276
remove leftovers casac.ms/image from rarely used functions, CAS-12276
make sure to close all tables in compareSubTables, CAS-12276
explicit roundup as done by default in CASA 5, fixes test_regrid_velocity_neg_width, CAS-12276
make test_mstransform CASA 5/6 compabitle, CAS-12276
adapt testhelper to be CASA 5/6 compabitle, CAS-12276
Merge pull request #880 in CASA/casa from bugfix/CAS-10711 to master
* commit '9ff40751f20c244113e604905ce33c575a2565bd':
Fixed resdiual() in MatrixCleaner to return proper residual image and properly modified to peakresidual from that
