First approach to the Entity
New example with entity & DBIx::Class
Delete empty file
Entity: aliases, runtime exposure, conditional exposure
UPdate example relations
Add Album entity & modify Artist entity
Update music app
Add `present` function
Add support for `present`: check for response body;
Bump version number;
Require for `Raisin::Entity`; present data w/o presenter with `Raisin::Entity`
Check for content if didn't pass
Cleanup code
Prepare Changes for new release
made some TODO notes about rendering
Cleanup `Entity`: remove `Exporter`, rename variables
Add documentation for `present`
Update test app
Exclude xt/
Support entities for Perl data structures
Add `Raisin::Entity` test