Warn players when they set unanchored regexp $-commands.

git-svn-id: https://pennmush.googlecode.com/svn/trunk@1810 ba372814-4f39-11de-9ad6-1127a62b9fcd
Rebuild help index.

git-svn-id: https://pennmush.googlecode.com/svn/trunk@1811 ba372814-4f39-11de-9ad6-1127a62b9fcd