improve DCIM Obs import process to be more streamlined
- import files as they are detected, no waiting until camera is closed!
- don't create bitmpas of full image; use some more efficient loading tricks
- faster hashing!
fix for NPE - just call finish() to trigger destroy() logic
change strings (not used?)
don't need to spit this log error out - network errors are common
use new intent for launching camera in multi mode