NTSL Crash Fix

 * Fixes the NTSL crashing the server by setting the max recursion limit to 15. The problem was that the BYOND recursion limit was being met before the NTSL recursion limit.
 * Added admin warning messages for the recursion limit.
 * Made the admin warnings only appear for every new program that is loaded, and not for everytime the script runs.
 * Made the preset servers set their names to their ID.