Add a method to format dates.
Make the tests pass.
Make form remote.
Style it a bit.
Merge branch 'topic/date-marks/askForSpecialDay' into develop

* topic/date-marks/askForSpecialDay:
  Style it a bit.
  Make form remote.
  Make the tests pass.
  Add a method to format dates.
Merge branch 'develop'

* develop: (34 commits)
  Style it a bit.
  Make form remote.
  Make the tests pass.
  Add a method to format dates.
  Deactivate guard on cucumber until gem is added.
  Add editor files to ignore.
  Prepare guard and spork for cucumber.
  Move all tests on multiple values as features.
  Move format_amount tests to feature tests.
  Replace unit tests by feature tests (clearer).
  Improve configuration of guard.
  Move last transaction first entry in the table.
  Finalize +/- button.
  Create a button to set sign of the operation.
  Adds ids to main layout elements.
  Complete tests on transaction.
  Complete tests on comptes and correct tests (then failed without capybara).
  Complete tests on comptes helper.
  Change categories.
  Test that categories are added on creation.
  ...