A factory for active record scope identifiers
lambda for the win
A simple way to define active record scope identifiers
specs can use the new scope identifier factory
name the method `#active_record_scope_identifier`

so there's no confusion
Merge pull request #48 from envato/ar_scope_config

convenience method for defining active record scope identifiers
Update version 0.5.0 -> 0.6.0
Merge pull request #52 from envato/update_version

Update version 0.5.0 -> 0.6.0
Merge branch 'master' into add_currency_support

Conflicts:
	spec/double_entry/account_spec.rb