improvement: adapt to new lager api (go-chassis#365)

improvement: create client may cause error (go-chassis#364)

support go 1.11 and go module (go-chassis#361)

fix unable to checkout google.golang.org/genproto (go-chassis#340)

new feature refactor lb and rate limiting based on new design, optimi…

…ze perf later (go-chassis#316)

Normalize the log format of restful-swagger (go-chassis#270)

compatible with glide (go-chassis#224)

bug fix: do the right version check (go-chassis#211)

Merge pull request go-chassis#202 from tianxiaoliang/master

optimize docs

Bug fix: Force fallback option does not work. (go-chassis#188)

* Bug fix: Force fallback option does not work.

* Add unit test

* Bug fix: Force fallback option does not work.