Context menu item for deletion added.

Floating context menu appears on longpress of crime item in list.
deleteCrime removes appropriate crime.
Contextual action mode!!

long press brings up context action bar and allows for multiple deletes.
note: selected items are difficult to differentiate on Galaxy Nexus.
Corrected unclear selection woes with state list drawable.
Implemented camera preview.

suspect 'algorithm' to determine ideal window size is a farce.
Added progressBar (indeterminate spinner).

initially wired up to be invisible.
Pictures take and save!!

No more camera API!!
Saved picture filename returned to CrimeFragment.
Added Photo class to handle photos.

created class Photo,
added getters and setters to Crime
CrimeFragment creates photo and sets to current crime.
Modified layout to include ImageView of photo in CrimeFragment
Thumbnail display of taken image implemented.
Added DialogFragment to display larger image on thumbnail click.