Move modlog in help from Moderators to Drivers.
Merge pull request #509 from kupochu/patch-2

Move modlog in help from Moderators to Drivers.
Possibly fix /kill not causing a restart in forever
Update memoryusage command
Add an option to check V8's memory usage
Remove crash from emergency logging
The code hasn't been used for a while and changes on the file had made
it crash.
Remove /memoryusage apps
No longer relevant.
Merge remote-tracking branch 'upstream/master'