update dtext gem

Gemfile.lock

@@ -6,7 +6,7 @@ GIT
 
 GIT
   remote: https://github.com/r888888888/dtext_rb.git
-  revision: 8afef10401aab15998b63ae735829fb37cfdf254
+  revision: 59a953e7c3f49cd1be7553b484fe292dbbab0e7e
   specs:
     dtext_rb (1.0.8)
       jeweler (~> 2.0)
@@ -131,12 +131,12 @@ GEM
     ffi (1.9.10-x64-mingw32)
     gctools (0.2.3)
     git (1.3.0)
-    github_api (0.14.3)
+    github_api (0.14.5)
       addressable (~> 2.4.0)
       descendants_tracker (~> 0.0.4)
       faraday (~> 0.8, < 0.10)
       hashie (>= 3.4)
-      oauth2 (~> 1.0.0)
+      oauth2 (~> 1.0)
     globalid (0.3.6)
       activesupport (>= 4.1.0)
     google-api-client (0.9.9)
@@ -234,12 +234,12 @@ GEM
     nokogumbo (1.2.0)
       nokogiri
     ntlm-http (0.1.1)
-    oauth2 (1.0.0)
+    oauth2 (1.2.0)
       faraday (>= 0.8, < 0.10)
       jwt (~> 1.0)
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
-      rack (~> 1.2)
+      rack (>= 1.2, < 3)
     os (0.9.6)
     pg (0.18.2)
     pg (0.18.2-x64-mingw32)