Update Forem commit and dependencies

Gemfile.lock

@@ -1,9 +1,10 @@
 GIT
   remote: git://github.com/radar/forem.git
-  revision: 7cb45256aa6afbf0d0ecee7836d620740bcbca1d
+  revision: 80e57e0eb47f1d9f6ceaf56942db906d39cdcc5d
   specs:
     forem (0.1)
       cancan
+      forem-redcarpet (= 1.0.0)
       kaminari
       rails (~> 3.1)
       simple_form
@@ -44,13 +45,18 @@ GEM
     addressable (2.2.6)
     ansi (1.4.1)
     arel (2.2.1)
+    blankslate (2.1.2.4)
     builder (3.0.0)
     cancan (1.6.7)
     erubis (2.7.0)
-    faraday (0.7.5)
-      addressable (~> 2.2.6)
-      multipart-post (~> 1.1.3)
-      rack (>= 1.1.0, < 2)
+    faraday (0.7.6)
+      addressable (~> 2.2)
+      multipart-post (~> 1.1)
+      rack (~> 1.1)
+    ffi (1.0.11)
+    forem-redcarpet (1.0.0)
+      pygments.rb (= 0.2.4)
+      redcarpet (= 2.0.1)
     hashie (1.2.0)
     hike (1.2.1)
     i18n (0.6.0)
@@ -86,6 +92,8 @@ GEM
     omniauth-twitter (0.0.7)
       omniauth-oauth (~> 1.0)
     polyglot (0.3.3)
+    pygments.rb (0.2.4)
+      rubypython (~> 0.5.3)
     rack (1.3.6)
     rack-cache (1.1)
       rack (>= 0.4)
@@ -113,13 +121,17 @@ GEM
     rake (0.9.2.2)
     rdoc (3.12)
       json (~> 1.4)
+    redcarpet (2.0.1)
+    rubypython (0.5.3)
+      blankslate (>= 2.1.2.3)
+      ffi (~> 1.0.7)
     simple_form (1.5.2)
       actionpack (~> 3.0)
       activemodel (~> 3.0)
     sprockets (2.0.3)
       hike (~> 1.2)
       rack (~> 1.0)
-      tilt (~> 1.1, != 1.3.0)
+      tilt (!= 1.3.0, ~> 1.1)
     thor (0.14.6)
     tilt (1.3.3)
     treetop (1.4.10)