Update gem dependencies

Gemfile.lock

@@ -1,7 +1,7 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (4.1.1)
+    activesupport (4.1.2)
       i18n (~> 0.6, >= 0.6.9)
       json (~> 1.7, >= 1.7.7)
       minitest (~> 5.1)
@@ -19,10 +19,10 @@ GEM
     coffee-script-source (1.7.0)
     daemons (1.1.9)
     erubis (2.7.0)
-    ethon (0.7.0)
+    ethon (0.7.1)
       ffi (>= 1.3.0)
     eventmachine (1.0.3)
-    execjs (2.2.0)
+    execjs (2.2.1)
     ffi (1.9.3)
     highline (1.6.21)
     hike (1.2.3)
@@ -33,7 +33,7 @@ GEM
     json (1.8.1)
     method_source (0.8.2)
     mini_portile (0.6.0)
-    minitest (5.3.4)
+    minitest (5.3.5)
     multi_json (1.10.1)
     nokogiri (1.6.2.1)
       mini_portile (= 0.6.0)
@@ -51,7 +51,7 @@ GEM
     rack-test (0.6.2)
       rack (>= 1.0)
     rr (1.1.2)
-    sass (3.3.8)
+    sass (3.3.9)
     sinatra (1.4.5)
       rack (~> 1.4)
       rack-protection (~> 1.4)
@@ -78,8 +78,8 @@ GEM
     thor (0.19.1)
     thread_safe (0.3.4)
     tilt (1.4.1)
-    typhoeus (0.6.8)
-      ethon (>= 0.7.0)
+    typhoeus (0.6.9)
+      ethon (>= 0.7.1)
     tzinfo (1.2.1)
       thread_safe (~> 0.1)
     uglifier (2.5.1)