Improvements

Make rooms publicly linkable by default
- ;set_property_info(#136, "entrances", {#ROOM_ID, "rwc"})
- ;set_property_info(#136, "exits", {#ROOM_ID, "rwc"})
Enable colors by default
- @ansi-option +all
Make everyone programmers by default
- @programmer USERNAME
Grant access to curl and exec by default
- DONE: $tilde_utils:curl and $tilde_utils:exec