Typo fixed

latidude > latitude in the options
Support of ButtonType

Symfony 2.3 added the ButtonType in form. It generate a
Twig_Error_Runtime exception when using form_javascript and/or
from_stylesheet cause there is no button_javascript or
button_stylesheet.
Add them
Merge pull request #281 from WedgeSama/master

Support of ButtonType
currency is also available since sf 2.3
Merge pull request #283 from mvrhov/patch-1

currency is also available since sf 2.3
Merge pull request #276 from Francescu/patch-1

Typo fixed
Select2 - don't generate a width by default
prepared 2.2.1 release
changelog stars
Select2 default configuration

Add the possibility to set up some default options of Select2 in the
config.yml

I add this possibility cause of the change from 4127f1e. I am using the
element default value for many form in some project, so I've got some
bugs. I think is better to have the possibility to change the default
value.
Array prototype for select2 config
Select2Type initConfig remove, use constructor
Merge pull request #287 from WedgeSama/master

Select2 default configuration