0.2.1-beta 版本
发布日期: 2015-01-08
pull request 26: Use binaries for topic paths and fix wildcard topics
emqtt_pubsub.erl: fix wildcard topic match bug caused by binary topic in 0.2.0
Makefile: deps -> get-deps
rebar.config: fix mochiweb git url
tag emqtt release accoding to [Semantic Versioning](http://semver.org/)
max clientId length is 1024 now.