Added barebone files to deal with persmissions
Added permissions and roles to ModelFactory
Changed example for user model, based on adding permissions
Merge branch 'master' into feature-permissions
Added IPV4 data type
Merge branch 'master' into feature-permissions
Added is_allowed to model_factory
Refactored is_allowed but commented out its use; removed custom errors
Removed options from model constructor
Refactored model initialization, formatting load queries
Added permissions checking to model_factory load() method
Added notes for _cache_permissions()
Fixed mongodb adapter's query() function
Removed errors.js from where it was referenced
Added basic permissions checking
Updated README to reflect model constructor returning self and not a promise, as in earlier versions
Updated README changelog for v.0.1.0
Refactored model_factory load() method to use flag _isnew = true if model was not found