2015-06-11 : v0.1a1 : Initial release
  - Imported code from Librarian

2015-06-12 : v0.1a2 : Minor changes
  - Added EmailField
  - Display proper form errors

2015-06-15 : v0.1a3 : Minor changes
  - Added FileField

2015-06-15 : v0.1a4 : Minor changes
  - Added HiddenField
  - Make field label optional
  - Make additional kwargs passed to field instances accessible under the field.options

2015-06-15 : v0.1a5 : Minor fixes
  - Fix field.options references
  - Fix occasionally failing unittest

2015-06-15 : v0.1a6 : Minor fixes
  - Allow hidden and email fields to have initial values

2015-06-16 : v0.1a7 : Minor fixes
  - Fix ValidationError constructor so is_form param is used
  - Fix IntegerField and FloatField so they allow None values when no value is entered
