Merge branch '4.3.0-wip' of https://github.com/FortAwesome/Font-Awesome into 4.3.0-wip

src/icons.yml

@@ -4846,6 +4846,8 @@ icons:
     created:    4.3
     filter:
       - whisper
+      - spy
+      - incognito
     categories:
       - Web Application Icons