update dependency

Gemfile.lock

@@ -37,7 +37,7 @@ GEM
     ffi (1.0.11)
     ffi (1.0.11-java)
     hashie (1.2.0)
-    highline (1.6.12)
+    highline (1.6.13)
     hike (1.2.1)
     httpauth (0.1)
     launchy (2.1.0)
@@ -49,7 +49,7 @@ GEM
     libv8 (3.3.10.4)
     libwebsocket (0.1.3)
       addressable
-    mime-types (1.18)
+    mime-types (1.19)
     multi_json (1.3.6)
     multipart-post (1.1.5)
     net-scp (1.0.4)
@@ -105,10 +105,9 @@ GEM
     rubypython (0.5.1)
       blankslate (>= 2.1.2.3)
       ffi (~> 1.0.7)
-    rubyzip (0.9.8)
-    selenium-webdriver (2.22.2)
+    rubyzip (0.9.9)
+    selenium-webdriver (2.24.0)
       childprocess (>= 0.2.5)
-      ffi (~> 1.0)
       libwebsocket (~> 0.1.3)
       multi_json (~> 1.0)
       rubyzip
@@ -134,7 +133,7 @@ GEM
       daemons (>= 1.0.9)
       eventmachine (>= 0.12.6)
       rack (>= 1.0.0)
-    thor (0.15.2)
+    thor (0.15.3)
     tilt (1.3.3)
     xpath (0.1.4)
       nokogiri (~> 1.3)