Update dependencies

Gemfile.lock

@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.5.2)
+      public_suffix (>= 2.0.2, < 4.0)
     ansi (1.5.0)
     chunky_png (1.3.8)
     daemons (1.2.4)
@@ -45,17 +45,17 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.2.0)
+    mini_portile2 (2.3.0)
     mojo_magick (0.5.6)
     msfrpc-client (1.1.1)
       msgpack (~> 1)
       rex (~> 2)
     msgpack (1.1.0)
-    multi_json (1.12.1)
-    nokogiri (1.8.0)
-      mini_portile2 (~> 2.2.0)
+    multi_json (1.12.2)
+    nokogiri (1.8.1)
+      mini_portile2 (~> 2.3.0)
     parseconfig (1.0.8)
-    public_suffix (2.0.5)
+    public_suffix (3.0.0)
     qr4r (0.4.1)
       mojo_magick
       rqrcode
@@ -64,7 +64,7 @@ GEM
       rack
     rainbow (2.2.2)
       rake
-    rake (12.0.0)
+    rake (12.1.0)
     rb-readline (0.5.5)
     rex (2.0.11)
       filesize