v0.3.0

• improved relationship configs
• built-in collection security configs
• fixed returning strings on aggregated collection methods
• fixed duplicated 'lock_attributes' on schema cache
• fix auto-migrating collections on update calls
• allow to configure auth token expiration time on config.yaml
• fix output of 'keys' and 'modules' to CLI
• added template engine to be used with Module::template()->compile()
• added Context::unsafe() method to enforce unsafe collection operations.
• exposed orWhere method for client-side implementation
• allow 'falsy' default values on schema builder (#121)
• added handy App::url() method to generate urls with credentials. (#122)