Improved error message handling in DismissPinActivity
Added ListView to DismissPinActivity
Impelemented ListView with contacts in DismissPinActivity. Issues with landscape mode still to be fixed.
Fix: DismissPinActivity layout now working as intended, including landscape mode (fixed nested scrollables bug)
Fully implemented Avatar in DismisPinActivity. Fixed some NPEs and persistency on configuration changes.
Changed filterContacts for loadContacts method in DismissPinActivity