Add a bootstrap script.

- Can also be ran to update the project.

Signed-off-by: Aron Cedercrantz <aron@cedercrantz.se>
Merge branch 'master' of https://github.com/opfo/app

* 'master' of https://github.com/opfo/app:
  commit --amend
  Add test frameworks and pod install
  Remove the Cocoa pods workspace from gitignore and run pod install
  Add dependencies to Podfile and add Pod directory to gitignore
  Add cocoapods to Gemfile and bundle