Added image/webp and video/webm MIME types.

conf/mime.types

diff --git a/conf/mime.types b/conf/mime.types
index 24e866e..0c4a00d 100644
--- a/conf/mime.types
+++ b/conf/mime.types
@@ -22,6 +22,7 @@
     image/x-jng                           jng;
     image/x-ms-bmp                        bmp;
     image/svg+xml                         svg;
+    image/webp                            webp;
 
     application/java-archive              jar war ear;
     application/mac-binhex40              hqx;
@@ -69,6 +70,7 @@
     video/mp4                             mp4;
     video/mpeg                            mpeg mpg;
     video/quicktime                       mov;
+    video/webm                            webm;
     video/x-flv                           flv;
     video/x-m4v                           m4v;
     video/x-mng                           mng;