Form submit sends only value of selected button.

Form submit sends only value of selected button.

Adding test for form submission with multiple 'submit' buttons.

Including only value of selected submit button in form params.

Reordering tests for clarity.

Refactoring form-with-submit to return form and button.

Trimming down test-press-with-multiple-buttons.

Adding multi-button test cases to test-build-request-details.
Merge pull request #20 from tokenshift/issue-13-pull

Form submit sends only value of selected button.