Update src/ngx_http_lua_log.c

update the comments "print equal ngx.log(ngx.NOTCIE, ...) not ngx.ERR"
Merge pull request #181 from smallfish/patch-1

Update src/ngx_http_lua_log.c
made a test case less possible to fail in slow testing modes like "mockeagain w + valgrind memcheck".
increased the timeout threshold for the slow tests in slow testing modes.
added a test case for a regression introduced by the upstream_pipeline patch of openresty.
Merge branch 'master' of github.com:chaoslawful/lua-nginx-module
updated docs to reflect recent changes.
refactor: we did not need to reset the on_abort_co_ctx field in reset_ctx.
feature: the user can now call ngx.exit(444) to abort pending subrequests in other light threads from within a light thread.
bugfix: when the user callback function registered by ngx.on_abort() discarded the client abort event, the request would be aborted by force when the next client abort event happened.
Merge branch 'master' of github.com:chaoslawful/lua-nginx-module
fixed several test cases which may fail unexpectedly due to timing errors.
feature: setting ngx.status after sending out response headers no longer yield a Lua exception but only leave an error message in the error.log file, which is useful for Lua-land debugging. thanks Matthieu Tourne for requesting this.
added tests for the "ngx_slab_alloc() failed: no memory" error message. these require the patch https://github.com/agentzh/ngx_openresty/blob/master/patches/nginx-1.2.4-slab_alloc_no_memory_as_info.patch
added more docs regarding using ngx.exit() to abort pending subrequests in other "light threads" and setting ngx.status after sending out the response headers.
fixed a test case in 020-subrequest.t for slow testing modes.
attempted to fix a test that may fail unexpectedly in the "hup reload" testing mode.
fixed an english typo in the error message for init_by_lua*.
Merge branch 'master' of github.com:chaoslawful/lua-nginx-module
feature: added ngx.req.start_time() to return the request starting time in seconds (the milliseconds part is the decimal part just as in ngx.now). thanks Matthieu Tourne for the patch.