feature: ngx.sleep(0) now always yield the control to the nginx event… … loop. This can be used to do voluntary CPU time slicing when running CPU intensive computations on the Lua land and to avoid such computations from blocking the nginx event loop for too long. This feature requires OpenResty's delayed-posted-event patch for the nginx core. Signed-off-by: Yichun Zhang (agentzh) <agentzh@gmail.com>

feature: implemented the ngx.timer.every() API function for creating … …recurring timers. Signed-off-by: Yichun Zhang (agentzh) <agentzh@gmail.com>

change: renamed the C API function ngx_http_lua_ffi_errlog_get_logs t… …o ngx_http_lua_ffi_errlog_get_msg.

change: renamed lua_intercept_error_log directive to lua_capture_erro… …r_log.

doc: a typo fix from Oleg Abrosimov. 

bumped version to 0.10.8. 

doc: bumped version to 0.10.7. 

doc: bumped version to 0.10.6. 

bugfix: *_by_lua_file: did not support absolute file paths on non-UNI… …X systems like Win32. thanks Someguynamedpie for the report and the original patch in openresty#835.

skipped check leak mode for two test cases using malformed requests.