Update country_select gem

and removed git repository from Gemfile. Caused bundle install error in vagrant box.

Gemfile

@@ -94,7 +94,7 @@ gem 'chart-js-rails'
 gem 'gravtastic'
 
 # for country selects
-gem 'country_select', github: 'stefanpenner/country_select'
+gem 'country_select'
 
 # for upload management
 gem 'paperclip'

Gemfile.lock

@@ -1,10 +1,3 @@
-GIT
-  remote: git://github.com/stefanpenner/country_select.git
-  revision: 585e9538a01ae9878e92f12a98261a09842ed015
-  specs:
-    country_select (2.1.0)
-      countries (~> 0.9, >= 0.9.3)
-
 GEM
   remote: https://rubygems.org/
   remote: https://rails-assets.org/
@@ -122,8 +115,12 @@ GEM
       execjs
     coffee-script-source (1.10.0)
     columnize (0.8.9)
-    countries (0.9.3)
+    countries (1.2.5)
       currencies (~> 0.4.2)
+      i18n_data (~> 0.7.0)
+    country_select (2.5.2)
+      countries (~> 1.2.0)
+      sort_alphabetical (~> 1.0)
     coveralls (0.7.0)
       multi_json (~> 1.3)
       rest-client
@@ -197,6 +194,7 @@ GEM
       builder
     htmlentities (4.3.1)
     i18n (0.7.0)
+    i18n_data (0.7.0)
     inversion (0.12.3)
       loggability (~> 0.4)
     jquery-datatables-rails (2.2.3)
@@ -431,6 +429,8 @@ GEM
     simplecov-html (0.8.0)
     sixarm_ruby_unaccent (1.1.1)
     slop (3.6.0)
+    sort_alphabetical (1.0.2)
+      unicode_utils (>= 1.2.2)
     spring (1.6.3)
     spring-commands-rspec (1.0.4)
       spring (>= 0.9.1)
@@ -462,6 +462,7 @@ GEM
       execjs (>= 0.3.0)
       json (>= 1.8.0)
     unicode-display_width (0.3.1)
+    unicode_utils (1.4.0)
     unobtrusive_flash (3.1.0)
       railties
     user_agent_parser (2.1.5)
@@ -504,7 +505,7 @@ DEPENDENCIES
   capybara
   chart-js-rails
   cocoon
-  country_select!
+  country_select
   coveralls
   daemons
   database_cleaner