add errors to default template
add autofocus option
checkbox default template
expand format arguments
_auto_widget already returns the block
always raise a TemplateSyntaxError for missing blocks
py3k compatibility
Only raise the TemplateSyntaxError in one place
Added THANKS file
Add testing
Fix test syntax
Bumped version to v2.0.3
Add Django 1.4.8 to the test matrix

Get Travis to test formulation against the older, but still supported 1.4.x release of Django.
Merge pull request #6 from sesh/patch-1

Add Django 1.4.8 to the test matrix
Remove Django 1.4.8 from test matrix
Update readme thanks
Fix formatting of date/time values
Remove unused imports
Bumped version to 2.0.4
Add render_form tag