tryspawn fix


git-svn-id: http://svn.code.sf.net/p/sauerbraten/code@4989 07af1644-1164-4067-b897-63bf4dc9b748
checkmaps fixes


git-svn-id: http://svn.code.sf.net/p/sauerbraten/code@4990 07af1644-1164-4067-b897-63bf4dc9b748
removeai fix


git-svn-id: http://svn.code.sf.net/p/sauerbraten/code@4991 07af1644-1164-4067-b897-63bf4dc9b748