minor fix
fixed a typo, simplifications
moved validator to test environment, added test
statement with agent parameter
Merge branch 'master' of https://github.com/webtech-uos/nodejs-lrs

Conflicts:
	app/controllers/statements.coffee
merged statement_mapper
Merge branch 'master' of https://github.com/webtech-uos/nodejs-lrs
merged
merged
Request param hotfix
Merge branch 'master' of https://github.com/webtech-uos/nodejs-lrs

* 'master' of https://github.com/webtech-uos/nodejs-lrs:
  merged
  merged statement_mapper
changed checkParams
merged
add CouchDB mappers for OAuth models
add functions to initialise the DBController and the UserMapper in Grunt tasks
complete the Grunt task to add users (refs #37)
create demo users when the server is set up
implement the users:list Grunt task (refs #37)
fix variable name
complete the ClientMapper implementation
use the Couch DB mapper to verify clients in the consumer strategy