Bump version and update changelog.

Release version 0.5.2.

Handle unicode in Form::__repr__.

Add encode_if_py2 decorator.
Bump version.
[Resolves #25]

Clean up API; document changes; bump version.

Bump version.

Update form field modeling.

Handle repeated field names
Expose selection of submit field
Update tests and documentation
Bump version to 0.4.0