links

bootstrap-sass
	https://github.com/twbs/bootstrap-sass

Class and Instance variables
	http://www.railstips.org/blog/archives/2006/11/18/class-and-instance-variables-in-ruby/

Delayed::Job
	https://github.com/collectiveidea/delayed_job
	http://railscasts.com/episodes/171-delayed-job-revised?view=asciicast
	http://www.salsify.com/blog/delayed-jobs-callbacks-and-hooks-in-rails

File and I/O
	http://www.tutorialspoint.com/ruby/ruby_input_output.htm
	http://stackoverflow.com/questions/5545068/what-are-all-the-common-ways-to-read-a-file-in-ruby

Paperclip
	https://github.com/thoughtbot/paperclip

Ransack
	https://github.com/activerecord-hackery/ransack
	
Ruby on Rails Tutorial
	http://ruby.railstutorial.org/chapters/sign-in-sign-out#sec-signin_failure

Tempfiles
	http://www.tutorialspoint.com/ruby/ruby_input_output.htm