some cleanups to hostcache (got rid of driver/address stuff and expanded the strings...

some cleanups to hostcache (got rid of driver/address stuff and expanded the strings, also increased number of cache slots)
connecting to a server is now much more direct (does not use hostcache)
now ignores the address string received in server info packets because it's often bogus in dp (sorry...  but not really avoidable)
slist reports now include the address of the server (useful!!) and are much wider (79 characters) to give more room for info
the NOROUTINGFIX option has been kind of merged away, whether the server uses it or not is still optional (search for routing fix)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@3038 d7cf8633-e32d-0410-b094-e92efae38249