Fix wwoofer create button
Reorganize passport configuration
 Enable set address in datetime picker
Use promises for db bootstrap
Convert itemCode to ENUM type
Set default max date in date picker
Remove Bearer authentication strategy: use passport local strategy with sessions instead
Add basic wwoofer membership page
Rename renewal to membership
Create payment complete/cancel pages
Add memberships GET endpoint
Add couple API integration tests using mocha
Add fake membership in database bootstrap
Add format-date helper
Add membership Ember model
Display list of memberships in the user account page
Add total paid amount in membership model
Added ember-validations