Removed empty line

Signed-off-by: Michael 'Tekkla' Zorn <tekkla@tekkla.de>
Removed silly comment

Signed-off-by: Michael 'Tekkla' Zorn <tekkla@tekkla.de>
Update Fontawesome to version 4.1.0

Signed-off-by: Michael 'Tekkla' Zorn <tekkla@tekkla.de>
Changed build process
Added default values to button properties
Removed check for correct type in build method()
Added assumption that a set icon and set text means to get an
imagebutton as result of process()

Signed-off-by: Michael 'Tekkla' Zorn <tekkla@tekkla.de>
Fixed error when accessing FirePHP by DI ($this->fire->*)

Signed-off-by: Michael 'Tekkla' Zorn <tekkla@tekkla.de>
Removed not needed set() on saving confing

Signed-off-by: Michael 'Tekkla' Zorn <tekkla@tekkla.de>
Add class comment and set members to protected

Signed-off-by: Michael 'Tekkla' Zorn <tekkla@tekkla.de>
Changed visibility of $validate property to public 
Needed to add validation rules by addValidationRule() when no $validate
property is defined in child class.

Signed-off-by: Michael 'Tekkla' Zorn <tekkla@tekkla.de>