bumped version to 0.9.2.

doc: updated the docs for ngx.req.socket(raw) to reflect the recent c…

…hange that allows reading raw request body data directly.

docs: bumped version to 0.9.0 and mentioned lua-resty-websocket and l…

…ua-resty-lock.

bumped version to 0.8.10.

bumped version to 0.8.9.

documented the "always_forward_body" option for ngx.location.capture(…

…) and ngx.location.capture_multi().

documented the new ngx.config.debug API and also updated docs to refl…

…ect other recent changes.

bumped version to 0.8.6.

bumped version to 0.8.5.

docs: bumped version to 0.8.4; also mentioned Nginx Systemtap Toolkit.