add implementation of Comparable interface to TagName to facilitate sorting.
Merge pull request #313 from APriestman/develop

Fixed bug with multiple SQLite databases open at once.
Merge pull request #312 from millmanorama/develop

add implementation of Comparable interface to TagName to facilitate sorting.
Added cache for FileSystem java objects
Add interface of addToHashDatabase() API to SleuthkitJNI
Implement more of new addToHashDatabase() API for SleuthkitJNI
Completed initial draft of adding transactions to hashdb API
Reformat some hashdb code
Reformat some hashdb code
Modified hfind for hash db API change
Reformatted hash db code