Make the paranoid column a protected attribute
Merge pull request #95 from agios/rails3.2

Make the paranoid column a protected attribute
Updated README. Fixed assocciation example as it was outdated and broken
Merge pull request #100 from budnik/rails3.2

Updated README. Fixed assocciation example as it was outdated and broken
Added tests for attr_protected paranoid column; untested in #95
don't save when destroying a non persisted object
Add persisted? check to destroy!
Merge branch 'dmathieu-remove_unsaved_objects' into rails3.2

Fixes #94 error when destroying an unpersisted object.
Merge branch 'rails3.2' of https://github.com/goncalossilva/rails3_acts_as_paranoid into rails3.2
Solved inheritance problem. IT ONLY WORKS FOR deleted_at COLUMN WHEN non-deleted IS NULL