jquery date-time picker

Gemfile

@@ -34,7 +34,7 @@ gem 'simple_form'
 gem 'nested_form'
 gem 'bootstrap', '~> 4.0.0.alpha3'
 gem 'tether-rails'
-gem "font-awesome-rails"
+gem 'font-awesome-rails', '~> 4.7', '>= 4.7.0.2'
 gem 'rack-cors'
 
 # image upload
@@ -53,7 +53,6 @@ gem 'to_xls-rails'
 # Use jquery as the JavaScript library
 gem 'jquery-rails'
 gem 'jquery-ui-rails'
-gem 'jquery-datatables-rails', '~> 3.4.0'
 # Turbolinks makes navigating your web application faster. Read more: https://github.com/turbolinks/turbolinks
 gem 'turbolinks', '~> 5'
 # Build JSON APIs with ease. Read more: https://github.com/rails/jbuilder
@@ -112,13 +111,8 @@ gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]
 
 gem 'httparty', '~> 0.15.5'
 
-gem 'momentjs-rails', :git => 'git://github.com/derekprior/momentjs-rails.git'
-gem 'bootstrap-daterangepicker-rails'
-# # gem 'momentjs-rails', '>= 2.9.0'
-# gem 'bootstrap3-datetimepicker-rails'
-# gem 'momentjs-rails', '>= 2.9.0'
-# gem 'bootstrap3-datetimepicker-rails'
-gem 'datetimepicker-rails', github: 'zpaulovics/datetimepicker-rails', branch: 'master', submodules: true
-gem 'bootstrap-datepicker-rails'
+gem 'momentjs-rails' # for date-range selector
+gem 'bootstrap-daterangepicker-rails' # date-range picker
+gem 'bootstrap-datepicker-rails' # date picker
 gem 'jquery-datetimepicker-rails'
-gem 'select2-rails'
+gem 'select2-rails' # for multi-select and auto-complete select box