Close result buffer in case it's the wrong type
Close result buffer in case it's the wrong type

Fixes #86

kotarak/vimclojure,jgrocho/vimclojure,kotarak/vimclojure,jgrocho/vimclojure,emezeske/vimclojure,jgrocho/vimclojure,kotarak/vimclojure,emezeske/vimclojure,emezeske/vimclojure