Add spec
Remove unused attributes from test app initializer
Remove vcm and apns attributes from initialiser
Remove vcm and apns mattrs from notifiable.rb
Add env attr to NotifierBase.rb
Add configuration logic to batch.rb

Batch.rb is initialised with a config hash. It passes on properties to notifiers as they are initialized
Update add in batch.rb

Add now doesnt fail if notifiers don't have a property that appears in the configuration
Merge pull request #36 from FutureWorkshops/configurable

Move notifier configuration into Batch.rb