Take some punches while importing stuff
Fix standalone mode swalling exceptions.

Fixes https://github.com/jdf/Processing.py-Bugs/issues/84.
Fix standalone mode swallowing exceptions.

Fixes https://github.com/jdf/Processing.py-Bugs/issues/84.
Merge branch 'master' of github.com:jdf/processing.py
Don't allow broken imports
Merge pull request #104 from kazimuth/importproblems

Make LibraryImporter a little more robust