Fix captioned image which was displaying too wide
Fix captioned image which was displaying too wide

Fix captioned image which was displaying too wide
This is a corection to a regression added in b7314a6 where we reduced
the number of rules defined for responsive image behavior.

Fixes #47

michaelcarwile/bootstrap-genesis,michaelcarwile/bootstrap-genesis,salcode/bootstrap-genesis,michaelcarwile/bootstrap-genesis,salcode/bootstrap-genesis,salcode/bootstrap-genesis