add ViewHolder tags back in and tweak bitmap cache
clean up of URI file info lookup
cleanup of cursor code, ensure it is released on finish
ensure SEND intent media sharing is working
fix issues with cleanly launch ImUrlActivity after unlock
in new code, the FileInfo object may not be null but path can be
fix bugs in sharing via SEND from third-party app
also fix issues with managedQuery and unnecessary .close() on cursors
fixes #2771 - ensures holder and resources are not null
Merge pull request #372 from n8fr8/bugs_media_sharing_viewing

Bugs media sharing viewing