Launchpad automatic translations update.
[FIX] debian deps
[REM] redundant logger initialization
[IMP] fix flow analysis warning, simplify loader code
[REM] unused variable
[IMP] replace explicit iteration by listcomp
[IMP] remove pointless extra newline in log message of column removal
[IMP] use TestSuite.addTests instead of manually iterating on loadTestsFromModule results
[IMP] small cleanups to module loading stuff
[FIX] missed case where sys.modules values can be None