MIME: changed type for woff to font/woff (ticket #1243).

According to RFC 8081 the previously used application/font-woff
type is deprecated.
diff --git a/conf/mime.types b/conf/mime.types
index 8a2348a..bd81e2a 100644
--- a/conf/mime.types
+++ b/conf/mime.types
@@ -24,7 +24,8 @@
     image/x-jng                                      jng;
     image/x-ms-bmp                                   bmp;
 
-    application/font-woff                            woff;
+    font/woff                                        woff;
+
     application/java-archive                         jar war ear;
     application/json                                 json;
     application/mac-binhex40                         hqx;