Migrations done

Migrations with relationships and foreign keys rules
Models

Basic models with relationships (map and reverse map: has_many() and
belongs_to() )
Fix case in relationship methods

Fix Case to case in reverse map of has_many relationships.
Eager Loading

Taking advantage of Eager Loading and
adding some lacked reverse maps of has-many relationships.
Merge pull request #2 from RodrigoJimmy/break/new_models

Break/new models