Cleanup up some imports
Correctly compare version type.
Don't assign the range type each time.
file -> open for 3.x support.  This fixes #152
Make dump() work Python 3.3
Merge pull request #214 from Lukasa/luk-sprint-branch

Sprint: More misc fixes
Remove unused imports
Merge pull request #215 from DasIch/remove-unused-imports

Remove unused imports