Bug972573, The selection screen for adding a contact with multiple phone...

... numbers to a SMS message lacks a cancel, back, or 'x' button

Change from ValueSelector to ActionMenu

https://bugzilla.mozilla.org/show_bug.cgi?id=972573
I somehow don't feel this is a right place to lazyload this file - I know that the value selector was there, but maybe it's a right time to change it. I'll talk to francisco about this part.