Code review changes

...ngs/java/src/org/sleuthkit/datamodel/AbstractContent.java

bindings/java/src/org/sleuthkit/datamodel/FileSystem.java

bindings/java/src/org/sleuthkit/datamodel/Pool.java

bindings/java/src/org/sleuthkit/datamodel/SleuthkitCase.java

bindings/java/src/org/sleuthkit/datamodel/SleuthkitJNI.java

tsk/auto/auto_db.cpp

tsk/auto/db_postgresql.cpp

tsk/auto/db_sqlite.cpp

tsk/auto/tsk_db.h

tsk/auto/tsk_db_postgresql.h

tsk/auto/tsk_db_sqlite.h