Changed the entire format and corrected few bugs.

1. Only one handler to accpet requests - as_operate.\n\n2. Removed the as_connect handler.\n\n3. Connecting to aersopike using ngx_http_as_operate_connect.\n\n4. Corrected a bug when the url is empty.\n\n5. Added the function ngx_http_as_utils_replace() that replaces a character sequence with another sequence.
Merge branch 'master' of https://github.com/achiever202/Nginx