Created TodoApp API

  * also installed rails-api
Scaffolded TodoApp
Generated User model using scaffold
Generated TodoItem with scaffold
Updated Gem file

  * added faker, active model serializers and rack-cors
Added seed data
Removed extra code created as result of app generation process
Updated routes
Added relationships to models
Updated TodoItems migration to reflect relational model
Updated seeds to correct minor errors
Updated routes to redirect to TodoItems index
Generated todo app serializer
Removed todo app serializer

  * named incorrectly, to be replaced
Generated todo item serializer
Added additional attributes to todo item serializer
Udated migration, schema and seed to include
completed status for todo items
Added completed status to todo item initializer
created todo app spa