FileUtils: -native is a classifier, not part of a version

This is the case for example for jffi which has an attached
artifact with the "native" classifier.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

src/main/java/org/scijava/util/FileUtils.java

@@ -130,7 +130,7 @@ public static String getExtension(final String path) {
 	 */
 	private final static Pattern versionPattern =
 		Pattern
-			.compile("(.+?)(-\\d+(\\.\\d+|\\d{7})+[a-z]?\\d?(-[A-Za-z0-9.]+?|\\.GA)*?)?((-(swing|swt|shaded|sources|javadoc))?(\\.jar(-[a-z]*)?))");
+			.compile("(.+?)(-\\d+(\\.\\d+|\\d{7})+[a-z]?\\d?(-[A-Za-z0-9.]+?|\\.GA)*?)?((-(swing|swt|shaded|sources|javadoc|native))?(\\.jar(-[a-z]*)?))");
 
 	public static String stripFilenameVersion(final String filename) {
 		final Matcher matcher = versionPattern.matcher(filename);