Donation module

- added donation module
- changed path modal icons
- created new-sass directory to add new/refactor modules
Merge branch 'feature/fund-loving-criminals' into feature/BOOK-672

Conflicts:
	bluebottle/bb_donations/templates/bb_donations/base.hbs
	bluebottle/bb_donations/templates/bb_donations/donation_modal.hbs
	bluebottle/common/static/js/bluebottle/app.js
missing bracket
Merge pull request #850 from onepercentclub/feature/BOOK-672

Donation module