adds devise configuration [#6]

Gemfile.lock

@@ -37,6 +37,7 @@ GEM
       thread_safe (~> 0.3, >= 0.3.4)
       tzinfo (~> 1.1)
     arel (6.0.2)
+    bcrypt (3.1.10)
     binding_of_caller (0.7.2)
       debug_inspector (>= 0.0.1)
     builder (3.2.2)
@@ -51,6 +52,13 @@ GEM
     coffee-script-source (1.9.1.1)
     columnize (0.9.0)
     debug_inspector (0.0.2)
+    devise (3.5.1)
+      bcrypt (~> 3.0)
+      orm_adapter (~> 0.1)
+      railties (>= 3.2.6, < 5)
+      responders
+      thread_safe (~> 0.1)
+      warden (~> 1.2.3)
     diff-lcs (1.2.5)
     erubis (2.7.0)
     execjs (2.5.2)
@@ -75,6 +83,7 @@ GEM
     multi_json (1.11.2)
     nokogiri (1.6.6.2)
       mini_portile (~> 0.6.0)
+    orm_adapter (0.5.0)
     rack (1.6.4)
     rack-test (0.6.3)
       rack (>= 1.0)
@@ -104,6 +113,8 @@ GEM
       thor (>= 0.18.1, < 2.0)
     rake (10.4.2)
     rdoc (4.2.0)
+    responders (2.1.0)
+      railties (>= 4.2.0, < 5)
     rspec-core (3.3.1)
       rspec-support (~> 3.3.0)
     rspec-expectations (3.3.0)
@@ -149,6 +160,8 @@ GEM
     uglifier (2.7.1)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
+    warden (1.2.3)
+      rack (>= 1.0)
     web-console (2.2.1)
       activemodel (>= 4.0)
       binding_of_caller (>= 0.7.2)
@@ -161,6 +174,7 @@ PLATFORMS
 DEPENDENCIES
   byebug
   coffee-rails (~> 4.1.0)
+  devise
   jbuilder (~> 2.0)
   jquery-rails
   rails (= 4.2.3)