Upgrade dependencies:
Upgrade dependencies:

- maven-surefire-plugin from 2.17 to 2.18
- maven-source-plugin from 2.2.1 to 2.4
- jacoco-maven-plugin from 0.7.1 to 0.7.2
- coveralls-maven-plugin from 2.2.0 to 3.0.1

dropwizard/dropwizard-discovery,jplock/dropwizard-discovery,jplock/dropwizard-discovery