add clean to autocompile

autocompile.sh

 #!/bin/bash
-if [ ! -z $1 ]; then
+if [ $1 = clean ]; then
+	rm *aux *log main.{i,g}* *toc
+	exit 0
+fi
+
+if [ $1 = conf ]; then
 	git subtree -P config pull ../config master && \
 	git subtree -P config push ../config core
 fi