Switch Shape to Base class (fixes #9)
Merge pull request #13 from jwhitlock/feature/9_shape_base_class

Switch Shape to Base class (fixes #9)
Copyright bump for 2014
Requirements bump: Allow Django 1.6.x, upgrade to nose 1.3.0
Switch model base class to GeoDjango
Switch Feed class to GeoDjango models
Switch remaining models to Base class
South is not required, so import in try/except
Switch lat/lon to GeoDjango points
Switch tests to use GeoDjango point format
Merge branch 'develop' into feature/1_geodjango
Add pragma: no cover to South path
Switch to geometry points by default
Update README.txt for GeoDjango installs
Merge branch 'feature/1_geodjango' into develop