* Add DNS API support for aliyun
* Update README.md
* format
* format
* format
* format...
* format...
* format
* format
* fix bug
* fix bug
* code format
* code format
* fix bug
* just ok...
* fix bug
* fix bug
* fix bug
* change "echo" to "printf"
* fix bug
* code format
* fix bug."head -c" in function _ali_nonce not supported by solaris
* fix bug."head -c" in function _ali_nonce not supported by solaris
* format
* fix bug._ali_nonce not work on solaris
* fix bug. _ali_nonce not work on solaris
* fix bug. _ali_nonce not work on solaris
* add aliyun.com to README.md