Addition of more Actions

[amlcurran]

Hi there,

I've used your project in my app and created some more Actions which I thought were useful. In case anyone else wants them, I forked your project and added them in. They are:

• SearchAction: calls onSearchRequested() in the host Activity
• DialogAction: calls showDialog() in the host Activity with defined id
• InterfaceAction: allows the clicking of an Action to be handled in the host Activity

Sorry about the icons being of the wrong style in the ActionBarExample project; I don't actually have a decent image editor on my pc...

Regards,

Alex -- Espiandev