Improve error message#69

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vsanta wants to merge 5 commits intoYelp:developfrom

vsanta:improve_error_message

Commits on Dec 10, 2016

Add API error description to error message.
Vanessa Sant'Anna
committed

Commits on Dec 11, 2016

Change code style when interpolating strings as per suggestion
Vanessa Sant'Anna
committed
Change new test code style to use raise_error as suggested.
Vanessa Sant'Anna
committed
Modernize remaining test to use raise_error
Vanessa Sant'Anna
committed
Change style of raise_error usage
Vanessa Sant'Anna
committed