Merge branch 'release/3.0.3' into development
Cleaning up tests, improve tests. Generate no temporary test file anymore.
Improvements to the mailing listener for git.
Added tests also.
Cleaning up tests, improve tests. Generate no temporary test file anymore.
Moved the test listener to the _files directory not to stay in the test directories.
Cleaning up tests, simplify mailing handling.
Merge branch 'release/3.0.4'