Added KeyListPublicAdapter
Reworked KeyList #66

* Added ic_menu_btn_add from android design icons
* KeyListPublicActivity doesn't use splitActionBarWhenNarrow
* layout/key_list_public_activity.xml  removed TextView with listInformation text
* Reworked KeyListPublicActivity
* Reworked KeyListPublicFragment
* Added menu/key_list_public