Commit 04/13/2014

Did a tweak with Tells because they weren't working appropriately. room
chatting is limited to reduce spam. A command line has been added to the
main window to execute commands with Input() using 0 0 as the first two
parameters (no room or user, no index). I will probably change this to
allow inputting the 0 0 to something else. Maybe with another command.

Added a few handy global procs such as SafeText() and TicksToTime().
SafeText escape the text to restrict HTML formatting in rooms.
TicksToTime returns a string based on ticks T in the format of "#h #m
#s".