Update onebox gem to remove hexpress dependency. It was clobbering th…

…e ColorSchemeColor hex attribute somehow.

Gemfile.lock

@@ -126,7 +126,6 @@ GEM
     guess_html_encoding (0.0.9)
     handlebars-source (1.3.0)
     hashie (2.0.5)
-    hexpress (1.2.0)
     highline (1.6.20)
     hike (1.2.3)
     hiredis (0.5.2)
@@ -172,7 +171,7 @@ GEM
     mock_redis (0.11.0)
     moneta (0.7.20)
     msgpack (0.5.8)
-    multi_json (1.10.0)
+    multi_json (1.10.1)
     multi_xml (0.5.5)
     multipart-post (2.0.0)
     mustache (0.99.5)
@@ -214,8 +213,7 @@ GEM
     omniauth-twitter (1.0.1)
       multi_json (~> 1.3)
       omniauth-oauth (~> 1.0)
-    onebox (1.3.8)
-      hexpress (~> 1.2)
+    onebox (1.3.9)
       moneta (~> 0.7)
       multi_json (~> 1.7)
       mustache (~> 0.99)