fix yui-compressor on ubuntu, change shebangs to bash

publish

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 bail() {
     echo fail: $*

yui-compressor

@@ -1,4 +1,8 @@
-#!/bin/sh
+#!/bin/bash
 
+if [[ -x /usr/bin/yui-compressor ]]; then
+    exec /usr/bin/yui-compressor "$1" -o "$2"
+else
     java -jar ~/apps/yuicompressor-2.4.2/build/yuicompressor-2.4.2.jar "$1" -o "$2"
+fi