added .gitignore file, to prevent checking in files like resources.jar / Revision.java when using git
added .gitignore file, to prevent checking in files like resources.jar / Revision.java when using git

git-svn-id: 6d8cdd4af04c6f63acdc5840a680025514bef303@3033 4f21837e-9f06-0410-ae49-bac5c3a7b9b6

egonw/pathvisio,egonw/pathvisio,egonw/pathvisio,egonw/pathvisio,egonw/pathvisio