Upgrade Maven plugins to most current versions
Upgrade Maven plugins to most current versions

- Upgrade Exec Maven plugin to version 1.5.0
- Upgrade Build Helper Maven plugin to version 1.12
- Upgrade Bundle Maven plugin to version 3.2.0
- Upgrade JaCoCo Maven plugin to version 0.7.7
- Upgrade Coveralls Maven plugin to version 4.2.0
- Upgrade Javadoc Maven plugin to version 2.10.4

astefanutti/camel-cdi