updates dependencies

Gemfile.lock

@@ -246,7 +246,7 @@ GEM
     orm_adapter (0.5.0)
     paranoia (2.1.3)
       activerecord (~> 4.0)
-    pg (0.18.2)
+    pg (0.18.3)
     poltergeist (1.6.0)
       capybara (~> 2.1)
       cliver (~> 0.3.1)
@@ -315,12 +315,12 @@ GEM
     rspec-support (3.3.0)
     ruby-progressbar (1.7.5)
     sass (3.4.18)
-    sass-rails (5.0.3)
+    sass-rails (5.0.4)
       railties (>= 4.0.0, < 5.0)
       sass (~> 3.1)
       sprockets (>= 2.8, < 4.0)
       sprockets-rails (>= 2.0, < 4.0)
-      tilt (~> 1.1)
+      tilt (>= 1.1, < 3)
     savon (2.11.1)
       akami (~> 1.2)
       builder (>= 2.1.2)
@@ -356,7 +356,7 @@ GEM
     thor (0.19.1)
     thread (0.2.2)
     thread_safe (0.3.5)
-    tilt (1.4.1)
+    tilt (2.0.1)
     tins (1.6.0)
     turbolinks (2.5.3)
       coffee-rails