Make agreement to TOS implicit in clicking "Apply"

[rohitpaulk]

Looking at our current signup process, I see two things that look like they can be stripped off.

• The todo_url field. The self-onboarding documentation URL would contain that info anyway, why ask for a separate link? I think that we added this field because we wanted to make open work mandatory, and pasting a specific link would make the user consciously aware that they satisfy that requirement. Is this really worth it?
• The three separate checkboxes. Why not implicitly tick them (with the wording "When you click on 'Apply', you agree to x, y and z" when the user clicks on 'Apply'? Reference: http://ux.stackexchange.com/questions/55571/auto-agreement-to-the-tos-by-clicking-sign-up-button-in-sign-up-form

[chadwhitacre]

I'm adding this to the Decouple milestone, because it's related to #4123.

[mattbk]

Part of #4130, although I'm questioning it here: #4130 (comment).

[chadwhitacre]

Moving to PR in #4124 for point 1. Point 2 moved to #4130.

[chadwhitacre]

Point 2 moved back here. :-)

[chadwhitacre]

Removing from milestone and project. Nice to have if we can get to it.