Merge pull request #49 in CASA/casa6 from CAS-12846 to master
* commit 'e56f64d0b22929c46ec15c34649d990ba30273c3':
Removed the casaTestHelper import. The test no longer used test helper calls
Fixed casaTestHelper not being found during import
Changed the tolerance of the checks, they were checking up to 7 decimal places before