Sponsor plans more visible, add Stripe form.
Pad donation plan header at the top.
Make "Become a Sponsor" buttons big.

Add support for custom donations.
Add a toggle to enable/disable VAT.
Change the link text when toggling VAT.
Add an example form to submit to an app.
Send amount in the form submitted by Stripe checkout.
Add donation package to the form submitted.
Merge pull request #23 from roidrage/mm-stripe-checkout

Turn sponsor plans into a more visible list, allows direct donations via Stripe forms