Use ECMASCRIPT5 and newest closure compiler

bin/jsshrink.sh

@@ -2,10 +2,8 @@
 PWD=`dirname "$0"`
 JS_DIR="$PWD/../program/js"
 JAR_DIR='/tmp'
-LANG_IN='ECMASCRIPT3'
-# latest version requires Java 7, we'll use an older one
-#CLOSURE_COMPILER_URL='http://dl.google.com/closure-compiler/compiler-latest.zip'
-CLOSURE_COMPILER_URL='http://dl.google.com/closure-compiler/compiler-20131014.zip'
+LANG_IN='ECMASCRIPT5'
+CLOSURE_COMPILER_URL='http://dl.google.com/closure-compiler/compiler-latest.zip'
 
 do_shrink() {
 	rm -f "$2"
@@ -39,7 +37,7 @@ if [ ! -r "$JAR_DIR/compiler.jar" ]; then
 		echo "Please download $CLOSURE_COMPILER_URL and extract compiler.jar to $JAR_DIR/."
 		exit 1
 	fi
-	(cd $JAR_DIR && unzip "/tmp/$$.zip" "compiler.jar")
+	(cd $JAR_DIR && unzip -p "/tmp/$$.zip" "*.jar" > "$JAR_DIR/compiler.jar")
 	rm -f "/tmp/$$.zip"
 fi