Passing a null $value to Form::submit(), Form::reset() or Form::button() was throwing an Exception. I made the default $value = null for those methods. They result in the following respective valid HTML: <input type='submit'/> <input type='reset'/> <button></button>

Signed-off-by: Jakobud <jake.e.wilson@gmail.com>

Signed-off-by: Colin Viebrock <colin@viebrock.ca>

Signed-off-by: Phill Sparks <phill@bulbstudios.com>

Signed-off-by: Colin Viebrock <colin@viebrock.ca>

Adds Form::register which allows Bundles (or anything for that matter) to register custom form inputs which then can be called like `Form::xxx`

added section class. refactored session for ioc usage. improved controller. added yielding and sections to blade. general blade improvements.