Replace 'detail' with 'default_detail' in Exceptions guide and APIException class docstring.
Merge pull request #1404 from hassanshamim/update-exeptions-documentation

Update Exceptions Documentation
Test and quick fix for #1257
Merge pull request #1405 from carltongibson/#1257

Test and quick fix for #1257
Test and fix for #1210. World's lowest hanging fruit.
Merge pull request #1406 from carltongibson/#1210

Closes #1210.