Move buildable_project to integrity/buildable
Rename Builder to ProjectBuilder
Remove forgotten test/helpers.rb
Fix up unit tests too
Allow to pass setup options to builder via configure
Threaded builder
Move BuilderStub to AcceptanceHelper
Allow to "re-open" configuration
Introduce Integrity.app

Not sure how useful it is. Opinion?
Add a rackup example
Remove outdated config/ dir
Disable notifiers tests
Project now has many builds instead of commits
Implement Project#building? using SQL, not Enumerable
Replace project.builds.empty? by project.blank?
Remove push url from edit page
Rename #human_readable_status to #human_status
Workaround randomely failing build test
Clean up acceptance tests a bit

* Removed some duplicates
* Shorter and better scenario description
* Make more use of factories/fixtures
* Avoid use of should
Striped "project" from acceptance tests

It's kinda useless beside having longer file name