changed readme
changed readme again
readme:
added rspec
added guard-rspec
added capybara
added shoulda-matchers
added factorygirl
added simplecov
added databasecleaner, better errors and quietassets
added sample factory and how-to-use
database cleaner setup + added coverage to gitignore
Merge pull request #5 from jeroenstevens/setup-test-suite

Setup test suite
merge conflicts form development merge