tests: suppressed a warning from the test scaffold for a timer test c… …ase.

doc: bumped version to 0.9.12. 

bumped internal code version to 0.9.12. 

bugfix: init_worker_by_lua*: memory corruptions would happen when no … …server {} is defined in nginx.conf. this regression had appeared in v0.9.11.

doc: bumped version to 0.9.11; also claimed that we work with nginx 1… ….7.4.

doc: bumped version to 0.9.10. 

doc: documented the new full-duplex stream cosocket feature. 

bumped version to 0.9.8. 

doc: now we have tested with nginx 1.5.12; also put the 0.9.7 release… … date.

bumped version to 0.9.6.