Add example geoloc plugin test page
Add geoloc plugin test page in catalog
Added plugin manager to cobalt core
Adapted geoloc plugin usage into catalog app
Merge branch '0.2.6-dev' into 0.2.6-dev-plugins
Move default Cobalt activity layout to code

Instead of XML layout in order to generate .jar
add plugin class
Move fragments layouts to code
Move DatePicker layout into code
Update android-support-v4 and don't export it
Export android-support-v4
Rollback layouts from code to XML

Add also some enhancement in DatePicker: code cleaning and
calendarViewShown on sw600dp & large devices
Add a way to manage plugins and dispatch messages
Merge branch '0.2.6-dev-plugins' into 0.2.6-dev