add generate_docs.sh to tools

tools/release/generate_docs.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+
+#try to grab the doxygen version modified by me
+#TODO: if the doxygen is not correct, we should install it manually
+
+
+sed -i .bak '/CC_DEPRECATED_ATTRIBUTE CC_DLL/,/NS_CC_END/d' ../../cocos/base/ccUTF8.h
+# git diff > doc-patch.patch
+# mv doc-patch.patch docs
+#we need to generate the patch automatically and remove it after applying
+# patch -fp1 < docs/doc-patch.patch
+
+
+version=`grep -e 'return' ../../cocos/cocos2d.cpp | awk '{print substr($3,0,length($3)-2)}'`
+echo $version
+cd ../../docs
+#we should  read cocos2d.cpp and retrieve the version number
+sed -i .bak "s/3\.0/${version}/g" doxygen.config
+
+rm doxygen.config.bak 
+
+doxygen doxygen.config 
+
+git checkout . ../cocos/base/ccUTF8.h 
+
+rm debug.txt