Bug fix: dont respond to cmds w/o prefix

If we respond to a command without a prefix - then someone who
types a command in a room full of these keys - ALL dollies would
respond. Fixed.
Revamped RLV processing drastically

Removed processing of RLV with buffered commands, saving commands
and Scripts using them into a list, and much more - and replaced
with a simple routine with less than half a dozen lines. The external
calls remain the same, and will for now. Used @getstatus to get
status of current restrictions and save them - to be refreshed
later.
Further attempts to fix timing problem

Timer seems to want to be slower than necessary at times. The
cause of this is unknown, or even if the timing report is correct.
Investigation continues.
Fixes rel to collapse and uncollapse

Dolly's Key would not stop quickly on Dolly down - and started
late on Dolly up. Fixed. Hovertext appeared to be the same way.
Fixed. Also fixed latent problem with a Jammed dolly logging in:
JAMMED status is cleared - if no one is there to hold the key,
then Dolly can't be Jammed can she?