Remove .settings folders of projects

Discussed here:

http://apache-wicket.1842946.n4.nabble.com/DISCUSSION-Remove-settings-of-projects-in-github-td4669818.html

1. Delete every .settings folders out of the maven projects and make sure that maven is going to setup the projects right if "configure as maven project" is invoked.

2. Ensure that the code style formatter is applied to the eclipse settings if the project is configured as maven project.

Emond suggested: https://github.com/topicusonderwijs/m2e-settings