Merged in bugfix/method_not_allowed_exception_mapper (pull request #180)

Added NotAllowedExceptionMapper

scm-webapp/src/main/java/sonia/scm/api/rest/NotAllowedExceptionMapper.java

@@ -0,0 +1,12 @@
+package sonia.scm.api.rest;
+
+import javax.ws.rs.NotAllowedException;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.Provider;
+
+@Provider
+public class NotAllowedExceptionMapper extends StatusExceptionMapper<NotAllowedException> {
+  public NotAllowedExceptionMapper() {
+    super(NotAllowedException.class, Response.Status.METHOD_NOT_ALLOWED);
+  }
+}