Handle the case in getRootDirectory() when root dir has additional meta . and .. entries.
Fixes #175
Merge branch 'master' of https://github.com/sleuthkit/sleuthkit
Merge branch 'file-carving' of https://github.com/tmciver-basis/sleuthkit into file-carving
add method to get abstract files by where clause
Merge branch 'file-carving' of https://github.com/adam-m/sleuthkit into file-carving
Promoted definition and implementation of getRanges() and
convertToImageOffset() methods to AbstractFile class.