gem 'rails_12factor' for precompile assests added
items column renamed; rspec gem installed; items are now ordered by due_time
main header position fixed; completion_update route fixed;
change test db to mysql; rename List.items method
postgresql support
fixes for Heroku deployment
ListController index fix
dynamic update of uncomplited items label and items style; List validations; lists rendering extracted to partial; added tests for models