1 test zeromq with simple req-rep pattern
Merge branch 'master' into feature/zeromq
Make an architecture with zeromq req-rep-broker pattern

* master:
  Update README.md
  1 there are two kinds of context in app. One is appcontext, which is passed to every handler func. Another is request-scoped context, using code.google.com/p/go.net/context 2 add a api to do google search, inside which will call a remote rest service

Conflicts:
	main.go
Merge branch 'feature/zeromq'

* feature/zeromq:
  1 test zeromq with simple req-rep pattern