UploadPack.FirstLine: Revert renaming of getOptions into getCapabilities

This is public facing, stable API.

Fortunately, this class is deprecated and will be removed in the next
major version bump.

Change-Id: I91193964732e9d1943e9dc613256196e9c9d1274
Signed-off-by: Ivan Frade <ifrade@google.com>
Signed-off-by: Jonathan Nieder <jrn@google.com>

org.eclipse.jgit/src/org/eclipse/jgit/transport/UploadPack.java

@@ -207,7 +207,7 @@ public class UploadPack {
 		}
 
 		/** @return capabilities parsed from the line. */
-		public Set<String> getCapabilities() {
+		public Set<String> getOptions() {
 			return firstWant.getCapabilities();
 		}
 	}