Update bundled gems

Gemfile.lock

@@ -41,17 +41,17 @@ GEM
     diff-lcs (1.1.3)
     dynamic_form (1.1.4)
     erubis (2.7.0)
-    execjs (1.3.0)
+    execjs (1.3.1)
       multi_json (~> 1.0)
     fabrication (1.3.2)
     formtastic (2.1.0.beta1)
       actionpack (~> 3.0)
-    gravatar_image_tag (1.0.0)
+    gravatar_image_tag (1.1.2)
     haml (3.1.4)
     hike (1.2.1)
     i18n (0.6.0)
     journey (1.0.3)
-    json (1.6.6)
+    json (1.7.0)
     kgio (2.7.4)
     mail (2.4.4)
       i18n (>= 0.4.0)
@@ -60,17 +60,17 @@ GEM
     metaclass (0.0.1)
     method_source (0.7.1)
     mime-types (1.18)
-    mocha (0.11.0)
+    mocha (0.11.3)
       metaclass (~> 0.0.1)
-    multi_json (1.3.2)
+    multi_json (1.3.4)
     orm_adapter (0.0.7)
     parallel (0.5.16)
-    parallel_tests (0.7.4)
+    parallel_tests (0.8.0)
       parallel
     peterpunk-mhash (0.0.8)
     pg (0.13.2)
     polyglot (0.3.3)
-    pry (0.9.9.3)
+    pry (0.9.9.4)
       coderay (~> 1.0.5)
       method_source (~> 0.7.1)
       slop (>= 2.4.4, < 3)
@@ -119,7 +119,7 @@ GEM
     shoulda-matchers (1.1.0)
       activesupport (>= 3.0.0)
     slop (2.4.4)
-    sprockets (2.1.2)
+    sprockets (2.1.3)
       hike (~> 1.2)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
@@ -133,7 +133,7 @@ GEM
     uglifier (1.2.4)
       execjs (>= 0.3.0)
       multi_json (>= 1.0.2)
-    unicorn (4.3.0)
+    unicorn (4.3.1)
       kgio (~> 2.6)
       rack
       raindrops (~> 0.7)