Add Eclipse-generated files to .gitignore

Eclipse creates some metadata files when working with this project.

Since we use Maven integration, these files are automatically generated
and should not be included in git.

Add these entries to .gitignore

Signed-off-by: Christian Kohlschütter <[email protected]>

Author: kohlschuetter

.gitignore

@@ -1,3 +1,7 @@
 target
 .idea
 *.iml
+.project
+.settings
+.classpath
+.factorypath