[opengrok] Improved testing and code cleanup

[trond.nor...@sun.com]

Author: Trond Norbye <trond.norbye at sun.com>
Repository: /hg/opengrok/trunk
Latest revision: 3c497269c42436a3f5eddc202ed9ac91b2ee1244
Total changesets: 1
Log message:
Improved testing and code cleanup

Files:
        update: src/org/opensolaris/opengrok/history/HistoryGuru.java
        update: test/org/opensolaris/opengrok/history/HistoryGuruTest.java