Added reportlab requirement.
Merge branch 'master' into receipts
Added sample receipts generation code.
Added a bit more content into receipt generation code.
Added more content.
Some general tweaks.
Fixed alignment.
Implemented email sending stuff.
Added a bit of documentation.
Fixed content margins.
Fixed schema.
Added a new method that allows adding new donations.
Implemented page for manual donation addition.
Marked required inputs.
Fixed the message.
Merge branch 'master' into manual
Improved style of the form.
Using proper email input type.
Using HTML5 DecimalField.
Merge branch 'manual' into receipts
Moved receipts module into updated package (from "donation" to "donations").