Merge branch 'master' of github.com:chaoslawful/lua-nginx-module

bugfix: now we require the SHA1 library in the "config" file.

Merge branch 'devel'

bugfix: cosocket API could not be used before ngx.location.capture an…

…d its friends for fast network access: tcpsock:send() method did not reset u->waiting properly. thanks 欧远宁.

updated docs to reflect recent changes.

updated docs to reflect recent changes.

minor coding style fixes.

updated docs to reflect recent changes.

updated docs to reflect recent changes.

cosocket: reverted casual changes to the developer build script in th…

…e last commit.