Add webtest to test requirements
Extend coverage

- Include branch coverage now
- Exclude some useless lines (mostly template)
Add action support

- Support for actions similar to Djangos
- Integration tests
- Bump version to 0.1.3
- Fix a bug where the item count was not cast to int (and fix tests for it)
- Template: Add support for additional items in the "head" block
- Template: Add "heading" block to be displayed above flash messages
- Remove depcreated classproperty and tests
- Fix code for branch coverage
- Add tests for additional forms and fields
- Change edit route to be unambigous