Small bug fixes

I noticed some small bugs when using the application, have now amended
to show both first name and surname in listview. When querying contacts
details it will use both first and second name. There was a problem if
two contacts had the same first name, now resolved. Noticed edit details
was now showing the correct group, also fixed, I had forgotten to
increment the array item it checks after changing database earlier.
Everything now working.

Updated APK to this version.