Fix Travis "bashbrew/" change detection
Merge pull request #349 from infosiftr/fix-travis

Fix Travis "bashbrew/" change detection
Update docker-library

- `docker-dev`: 1.3.3
- `golang`: 1.4 (remove 1.2, update `:latest` to be 1.4)
- `mariadb`: 10.1.2
- `mongo`: 2.6.6
- `mysql`: `MYSQL_ALLOW_EMPTY_PASSWORD`
- `node`: NPM 2.1.11
- `python`: 2.7.9
- `redis`: 2.8.18
Merge pull request #348 from infosiftr/update-docker-library

Update docker-library
Update ubuntu

- `ubuntu:precise`: 20141210
- `ubuntu:trusty`: 20141210
- `ubuntu:utopic`: 20141210
- `ubuntu:vivid`: 20141214
Merge pull request #351 from tianon/ubuntu

Update ubuntu