Fixes #3854 - exception on loading an uninstalled module
Merge pull request #65 from tstrachota/3854_module_loading

Fixes #3854 - exception on loading an uninstalled module
fixes #3523 - output of help grows with each invocation
modules test silenced
Merge pull request #68 from tstrachota/test_out

modules test silenced
Merge pull request #67 from tstrachota/3523_help_grows

fixes #3523 - output of help grows with each invocation