Fix default error
Merge pull request #3 from mociepka/patch-1

Fix default error
Bump version
Move get_default from form field to model field.
Merge pull request #4 from marekbrzoska/master

Move get_default from form field to model field
2013.3.1
Update and rename README.rst to README.md
PEP 386
Introduce optional babel support
Update README.md
Update README.md
Fixes #9 -- Allows PriceField to store `None`.
Merge pull request #10 from gregmuellegger/support-none

Allow PriceField to store `None`.
Validate currency of assigned prices
Properly mark price fields as unchanged
Preliminary python3 support
Use unicode literals
Python 3 compatibility
Add basic tests
Show that we support Python 3