Bump omniauth-facebook

Gemfile

@@ -141,7 +141,7 @@ gem "open_graph_reader", "0.6.1"
 # Services
 
 gem "omniauth",           "1.3.1"
-gem "omniauth-facebook",  "3.0.0"
+gem "omniauth-facebook",  "4.0.0"
 gem "omniauth-tumblr",    "1.2"
 gem "omniauth-twitter",   "1.2.1"
 gem "twitter",            "5.16.0"

Gemfile.lock

@@ -476,7 +476,7 @@ GEM
       rspec (>= 2.0, < 4.0)
     jsonpath (0.5.8)
       multi_json
-    jwt (1.5.1)
+    jwt (1.5.4)
     kaminari (0.16.3)
       actionpack (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -529,9 +529,9 @@ GEM
       nenv (~> 0.1)
       shellany (~> 0.0)
     oauth (0.5.1)
-    oauth2 (1.1.0)
+    oauth2 (1.2.0)
       faraday (>= 0.8, < 0.10)
-      jwt (~> 1.0, < 1.5.2)
+      jwt (~> 1.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
@@ -540,7 +540,7 @@ GEM
     omniauth (1.3.1)
       hashie (>= 1.2, < 4)
       rack (>= 1.0, < 3)
-    omniauth-facebook (3.0.0)
+    omniauth-facebook (4.0.0)
       omniauth-oauth2 (~> 1.2)
     omniauth-oauth (1.1.0)
       oauth
@@ -973,7 +973,7 @@ DEPENDENCIES
   mysql2 (= 0.4.4)
   nokogiri (= 1.6.8)
   omniauth (= 1.3.1)
-  omniauth-facebook (= 3.0.0)
+  omniauth-facebook (= 4.0.0)
   omniauth-tumblr (= 1.2)
   omniauth-twitter (= 1.2.1)
   omniauth-wordpress (= 0.2.2)