Remove loading 'date_helper' from the 'factories' (spork can't load this helper).
Update 'about' page for Bootstrap design.
Update kit 'show' page for Bootstrap design.
Update kit 'edit' & 'new' page for Bootstrap design. Add Bootstrap style for fields_with_errors.
Update holiday 'edit' & 'new' page for Bootstrap design.
Compress images, delete unused images, change substrate & footer images.
Add big picture for holiday.
Add specs for Holiday model. Update kit _form for right checking avatar image.