去除暂时无用的主题css；修改feedback js文件名称

Change-Id: I7d80474ce1fd788a431dc97ca042c61d9109f887
Signed-off-by: poisonbian <poisonbian@gmail.com>
使用json2库，以支持IE7及以下版本

Change-Id: I87d2f10ce5088a35f77e9b727f523388dc82f81e
Signed-off-by: poisonbian <poisonbian@gmail.com>
test修改为demo

Change-Id: Id5c2022805b0e128afa65b290c75c2ee51601ed8
Signed-off-by: poisonbian <poisonbian@gmail.com>
允许的标签中去除table和tr，在样例中增加表格

Change-Id: I9bba29d1f9cb873f73b752a2672a862ee810f1cf
Signed-off-by: poisonbian <poisonbian@gmail.com>
readme增加文件说明

Change-Id: I7230cca832dfe539525ec98c6c6c4886b11178d9
Signed-off-by: poisonbian <poisonbian@gmail.com>