Codestriker 1.8.1 released

Fixed metric support so multiple reviewers are handled correctly. Also fixed a bug where the Codestriker time wasn't correctly reported in the metric summary page. The topic creation emails now contain the list of files impacted, and other topic property change emails contain more information as to what had changed. Fixed a bug with LXR integration when the LXR database is password protected. Also modified checksetup.pl so that it is more user-friendly when certain components are missing from the system.