Merge pull request #2023 from APriestman/6806_osxWarnings

bindings/java/jni/auto_db_java.cpp

bindings/java/jni/auto_db_java.h

tools/autotools/tsk_comparedir.cpp

tools/autotools/tsk_recover.cpp

tools/fstools/blkcalc.cpp

tools/fstools/blkcat.cpp

tools/fstools/blkls.cpp

tools/fstools/blkstat.cpp

tools/fstools/fcat.cpp

tools/fstools/ffind.cpp

tools/fstools/fls.cpp

tools/fstools/fsstat.cpp

tools/fstools/icat.cpp

tools/fstools/ifind.cpp

tools/fstools/ils.cpp

tools/fstools/istat.cpp