Pre-distribute Youtube traffic among AppIDs to reduce 500 occurrences
Merge pull request #131 from harmonymeow/patch20130706

Pre-distribute Youtube traffic among AppIDs to reduce 500 occurrences
show Explicit 503 error
new certs
refine 404 error
refine and fix logging.debug
bugfix for memimporter
Merge branch '3.0' of https://github.com/goagent/goagent into SayCV_goagent
update offcial.