Add server-side validation for hosts + fix update service
Rename the wwoofer table
Implement address update endpoint + add address server-side validation
Add department/country dropdowns in host template
Make countryId non-nullable (address model)
Implement host creation endpoint
Improve host create/update services
Implement address creation endpoint
Implement host creation + countries/departments controllers
Implement address deletion endpoint
Add permanent token for wwoofer (database bootstrap)
Merge pull request #1 from wwoof/master

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