eclipse artifact shouldn't be commited 

switching branch is harder than it should as some eclipse files are committed.

```
nherbaut@hades:~/workspace/VARIAMOS$ git checkout development
error: Your local changes to the following files would be overwritten by checkout:
	.settings/org.eclipse.buildship.core.prefs
	com.variamos.reasoning/.classpath

```

could you please remove those files from the repo?