Add function to ensure some birthday minimum date
Add function to compare birthdays by date
Add store method to load occasions from some date
List upcoming occasions
Merge pull request #22 from sebn/upcoming-birthdays

Upcoming birthdays
Fix broken closing tag
Quick and dirty fix for completion list

Follow-up to 371aa36761b561af73847c20e90bff25c1167d2c
Merge branch 'master' into change-birthday-date

Conflicts:
	app/core/birthdays.js
	test/core/app.test.js
	test/core/birthdays.test.js
Merge pull request #23 from sebn/change-birthday-date

Change birthday date
WIP: Set up birthday person change UI (not core)
Create feature function skels
Change person, but still show the old description
Fix core/birthdays tests to enfore birthday person
Ensure all birthday properties are stored
Update birthday description on person change