upgrade Gem to the lastest

Gemfile

@@ -17,6 +17,7 @@ gem 'font-awesome-sass'
 gem 'jbuilder'
 
 gem 'mongoid'
+gem 'mongoid-tree'
 gem 'mongoid-pagination'
 gem 'redcarpet'
 gem 'rouge'

Gemfile.lock

@@ -27,7 +27,7 @@ GEM
       minitest (~> 5.1)
       thread_safe (~> 0.1)
       tzinfo (~> 1.1)
-    angularjs-rails (1.3.4)
+    angularjs-rails (1.3.8)
     arel (5.0.1.20140414130214)
     bson (2.3.0)
     builder (3.2.2)
@@ -49,7 +49,7 @@ GEM
     celluloid (0.16.0)
       timers (~> 4.0.0)
     chunky_png (1.3.3)
-    codeclimate-test-reporter (0.4.3)
+    codeclimate-test-reporter (0.4.5)
       simplecov (>= 0.7.1, < 1.0.0)
     coderay (1.1.0)
     coffee-rails (4.1.0)
@@ -60,7 +60,7 @@ GEM
       execjs
     coffee-script-source (1.8.0)
     connection_pool (2.1.0)
-    database_cleaner (1.3.0)
+    database_cleaner (1.4.0)
     diff-lcs (1.2.5)
     docile (1.1.5)
     erubis (2.7.0)
@@ -79,37 +79,43 @@ GEM
     foundation-icons-sass-rails (3.0.0)
       railties (>= 3.1.1)
       sass-rails (>= 3.1.1)
-    foundation-rails (5.4.5.0)
+    foundation-rails (5.5.0.0)
       railties (>= 3.1.0)
-      sass (>= 3.2.0)
+      sass (>= 3.2.0, < 3.4)
-    guard (2.10.1)
+    guard (2.11.1)
       formatador (>= 0.2.4)
       listen (~> 2.7)
       lumberjack (~> 1.0)
+      nenv (~> 0.1)
+      notiffany (~> 0.0)
       pry (>= 0.9.12)
+      shellany (~> 0.0)
       thor (>= 0.18.1)
-    guard-bundler (2.0.0)
+    guard-bundler (2.1.0)
       bundler (~> 1.0)
       guard (~> 2.2)
+      guard-compat (~> 1.1)
+    guard-compat (1.2.0)
     guard-rails (0.7.0)
       guard (~> 2.0)
-    guard-rspec (4.4.1)
+    guard-rspec (4.5.0)
       guard (~> 2.1)
+      guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
     hike (1.2.3)
     hitimes (1.2.2)
     html_truncator (0.4.0)
       nokogiri (~> 1.5)
-    i18n (0.6.11)
+    i18n (0.7.0)
     jbuilder (2.2.6)
       activesupport (>= 3.0.0, < 5)
       multi_json (~> 1.2)
     jquery-rails (3.1.2)
       railties (>= 3.0, < 5.0)
       thor (>= 0.14, < 2.0)
-    json (1.8.1)
+    json (1.8.2)
-    kgio (2.9.2)
+    kgio (2.9.3)
-    listen (2.8.3)
+    listen (2.8.5)
       celluloid (>= 0.15.2)
       rb-fsevent (>= 0.9.3)
       rb-inotify (>= 0.9)
@@ -118,9 +124,9 @@ GEM
       mime-types (>= 1.16, < 3)
     method_source (0.8.2)
     mime-types (2.4.3)
-    mini_magick (4.0.1)
+    mini_magick (4.0.2)
-    mini_portile (0.6.1)
+    mini_portile (0.6.2)
-    minitest (5.4.3)
+    minitest (5.5.1)
     mongoid (4.0.0)
       activemodel (~> 4.0)
       moped (~> 2.0.0)
@@ -132,19 +138,25 @@ GEM
     mongoid-pagination (0.2.0)
       activesupport
       mongoid
-    mongoid-rspec (1.10.0)
+    mongoid-rspec (2.0.0)
-      mongoid (>= 3.0.1)
+      mongoid (~> 4.0.0)
       rake
-      rspec (>= 2.14)
+      rspec (~> 3.1)
-    moped (2.0.2)
+    mongoid-tree (2.0.0)
+      mongoid (>= 4.0, <= 5.0)
+    moped (2.0.3)
       bson (~> 2.2)
       connection_pool (~> 2.0)
       optionable (~> 0.2.0)
     multi_json (1.10.1)
-    netrc (0.9.0)
+    nenv (0.1.1)
-    newrelic_rpm (3.9.8.273)
+    netrc (0.10.2)
+    newrelic_rpm (3.9.9.275)
     nokogiri (1.6.5)
       mini_portile (~> 0.6.0)
+    notiffany (0.0.3)
+      nenv (~> 0.1)
+      shellany (~> 0.0)
     optionable (0.2.0)
     origin (2.1.1)
     pry (0.10.1)
@@ -155,10 +167,10 @@ GEM
       pry (>= 0.9.10, < 0.11.0)
     pry-rails (0.3.2)
       pry (>= 0.9.10)
-    quiet_assets (1.0.3)
+    quiet_assets (1.1.0)
       railties (>= 3.1, < 5.0)
     rack (1.5.2)
-    rack-test (0.6.2)
+    rack-test (0.6.3)
       rack (>= 1.0)
     rails (4.1.8)
       actionmailer (= 4.1.8)
@@ -180,14 +192,14 @@ GEM
     rb-fsevent (0.9.4)
     rb-inotify (0.9.5)
       ffi (>= 0.5.0)
-    redcarpet (3.2.1)
+    redcarpet (3.2.2)
-    redis (3.1.0)
+    redis (3.2.0)
     redis-namespace (1.5.1)
       redis (~> 3.0, >= 3.0.4)
     rest-client (1.7.2)
       mime-types (>= 1.16, < 3.0)
       netrc (~> 0.7)
-    rouge (1.7.4)
+    rouge (1.7.7)
     rqrcode-with-patches (0.5.4)
       chunky_png
     rspec (3.1.0)
@@ -219,6 +231,7 @@ GEM
       sass (~> 3.2.2)
       sprockets (~> 2.8, < 3.0)
       sprockets-rails (~> 2.0)
+    shellany (0.0.1)
     sidekiq (3.3.0)
       celluloid (>= 0.16.0)
       connection_pool (>= 2.0.0)
@@ -233,14 +246,15 @@ GEM
       multi_json (~> 1.0)
       simplecov-html (~> 0.8.0)
     simplecov-html (0.8.0)
-    slim (2.1.0)
+    slim (3.0.1)
-      temple (~> 0.6.9)
+      temple (~> 0.7.3)
       tilt (>= 1.3.3, < 2.1)
-    slim-rails (2.1.5)
+    slim-rails (3.0.1)
-      actionpack (>= 3.0, < 4.2)
+      actionmailer (>= 3.1, < 5.0)
-      activesupport (>= 3.0, < 4.2)
+      actionpack (>= 3.1, < 5.0)
-      railties (>= 3.0, < 4.2)
+      activesupport (>= 3.1, < 5.0)
-      slim (~> 2.0)
+      railties (>= 3.1, < 5.0)
+      slim (~> 3.0)
     slop (3.6.0)
     spring (1.2.0)
     sprockets (2.12.3)
@@ -252,7 +266,7 @@ GEM
       actionpack (>= 3.0)
       activesupport (>= 3.0)
       sprockets (>= 2.8, < 4.0)
-    temple (0.6.10)
+    temple (0.7.5)
     thor (0.19.1)
     thread_safe (0.3.4)
     tilt (1.4.1)
@@ -260,7 +274,7 @@ GEM
       hitimes
     tzinfo (1.2.2)
       thread_safe (~> 0.1)
-    uglifier (2.5.3)
+    uglifier (2.7.0)
       execjs (>= 0.3.0)
       json (>= 1.8.0)
     unicorn (4.8.3)
@@ -297,6 +311,7 @@ DEPENDENCIES
   mongoid
   mongoid-pagination
   mongoid-rspec
+  mongoid-tree
   newrelic_rpm
   nokogiri
   pry-nav