the asyncio plugin (experimental)
 removed some useless debug
fixed corerouter error reporting
added asyncio build profile
fixed tornado plugin
another error report fix for the corerouter
the corerouter error reporting is still wrong :(
added php session support over cache
fixed respawn when in on-demand mode
ready to release 2.0.4
Add synonym "lru"  for "purge_lru" in cache config