Merge pull request #11 from jamesmoriarty/master

Feature: better attributes inspect
Updated changelog
Added support of `:create` and `:update` contexts for validations
Fixed the persistence when `:via` is specified in the repository
Release 0.53.2
Less confusing Concerns::SetCriteria
Add Guard and split Repository find method out into find and where
Add tmp to gitignore
Update finders shared example for new #where method. Related to #13
Remove Guard
`map_attribute` forces symbol key
Merge pull request #14 from mattbeedle/where

Where
Updated docs for `where` [ci skip]
Added a link to contributors [ci skip]
Fixed contributors link [ci skip]
Introduced `Datamappify.config` for configuring default behaviours
Cleaned up EOF lines [ci skip]
`map_attribute` now takes `:to` and `:provider` instead of a string for specifying data source
provider_name should be a stringe
Introduced `group` for grouping `map_attribute`, closes #8