Readme
added source: an empty rails skeleton
specify ruby version
added testing gems and basic testing setup
challenges controller and challenge and cohort models.
remove public/index
move faker and factory girl to dev/test group
group challenges by phase and unit
basic index view: display challenges by phase and level
bootstrap.css
sweet tabs
debugger gem
added units and grouped challenges by phase and unit
divide content into partials
added .image to challenge
updated readme
removed unnecessary .gitignore
use phase-<number> and unit-<number> instead of faker
grouped_by_phase_and_level => grouped_by_phase_and_unit
separate challenge-unit name with underscore