Fix small issue with help flag in bootstrap script, change code style in Rakefiles and Gemfile
Major refactor to bootstrap script. Generates content of spec/test helpers, along with Rakefiles depending on test environment
Initial structure 138e
Add missing require line for test tasks in Rakefiles
Create failing tests, add overlooked require line in Rakefile
Change tests slightly to account for floats and a change in code style (yay rubocop?). Implement ForceCalculator and the executable
Merge tests and implementation of problem 138 [Easy]