Merge pull request #16 from cdcueva/schema_version_3

fixed spelling error in one model
Merge pull request #17 from cdcueva/schema_version_3

fixed spelling in role.rb model
deleted 3 migration files with wrong names
Deleted old model file
changed and added new migrations for schema version 3
changed all models to reflect new schema
updated seed file for new seed file
added includes for all javascript to appleication.js
updated schema.rb file
Merge branch 'master' of https://github.com/cdcueva/oliwi into schema_version_3