Fixing typo in settings variable.
Merge pull request #27 from grigna/patch-1

Fixing typo in settings variable.
Update phonenumber.py

Rolling back the type-o correction.
Honor blank and default model field attributes
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* This allows you to save not required phonenumberfields that are non-null
* Test were updated
Fix for unnecessary condition
Merge pull request #28 from stefanfoulis/develop

honor blank and default field attributes