multiple messages went missing since run once only grabbed the latest
workaround some weird issue in which self.capability gets shared between class instances
Merge pull request #44 from sphaero/master

multiple messages went missing since run once only grabbed the latest
added travis ci config file
Merge pull request #45 from sphaero/ci-travis

added travis ci config file
added pyzmq dependency
Merge pull request #46 from sphaero/ci-travis

travis-ci: added pyzmq dependency
added ipaddress dependency for python 2.7 and 3.2
Merge pull request #47 from sphaero/ci-travis

added ipaddress dependency for python 2.7 and 3.2
Merge branch 'master' into feature_subscribe