Added a test to check the independency of modules of commonlib
Improved the dependency checking
Skipped non subpackages
Merge branch 'master' of github.com:gem/oq-commonlib into dependency-check
commonlib must be independent from the engine
Merge branch 'master' of github.com:gem/oq-commonlib into dependency-check
Fixed a docstring
Improved the dependency check
Added a couple of comments
Merge pull request #38 from gem/dependency-check

Dependency check