gulp hint should fail the build
Fix checkstyle
use env in bin/hipache
Zookeeper driver support
Enable redis tests again
Merge pull request #185 from willdurand/travis-ci-4

Fix checkstyle, enable `gulp hint` again
Merge pull request #187 from willdurand/travis-ci-5

Enable redis tests again
Merge pull request #186 from willdurand/fanatic-zookeeper-driver

Zookeeper driver support (replaces #132)