version normalization from Maven to Eclipse is incorrect in some corner cases

The code in EclipseOSGiManifestWriter.getNormalizedVersion is incorrect in the case where there are 4 components as input to the version. For instance, it converts 2.3.0.incubating-SNAPSHOT to 2.3.0.incubating.SNAPSHOT - this has 5 components, separated by "periods" and is invalid as an Eclipse version number; Eclipse version numbers have 4 components (maximum) where the first 3 are numeric. See http://help.eclipse.org/stable/index.jsp?topic=/org.eclipse.pde.doc.user/guide/tasks/pde_version_qualifiers.htm