Seperated locked and lock level, to allow for relocking doors to previous lock level.

The data is stored in the esm as -lockLevel if unlocked; lockLevel if locked. While not tested, it should not present any problems.
Small changes to lock command (If no valid lockLevel exists, defaults to 100)
Evidence chest now locks when new evidence is added to it
Removed mLocked, kept it as "Negative lock level means unlocked"
Fixed various issues caused by late-night coding. Also added "unlock" message to unlocked doors
Fixed issue which may occur if there's no evidence chest nearby