Data-picture: updated docs with data-class attribute
Data-picture: updated demos with data-class attribute
Data-picture: added support for data-class attribute

Allows the user to apply a CSS class attribute to the image
element create by the plugin.
Fixed scss-lint issues
Merge pull request #5155 from LaurentGoderre/fix-scss-lint-issues

Build: Fixed scss-lint issues
Build: Pin SCSSLint version for Travis to 0.22.0

Prevent build failures due to new SCSSLint releases introducing new
options
Build: Add David-DM badge to readme

Adds visibility to outdated devDependencies.
Swapped Travis to the new SVG badge at the same time.
Merge pull request #5156 from nschonni/pin-scss-lint-version

Build: Pin scss lint version & update SVG badges
Web Accessibility Assessment Methodology: Fixed issue with AA total (fixes #5151)
Merge pull request #5124 from patheard/data-picture-class

Data picture class
Merge pull request #5152 from pjackson28/fixwamethod

Web Accessibility Assessment Methodology: Fixed issue with AA total (fixes #5151)
Tables: Added sorting for currency and formatted numbers (fixes #5115)
Merge pull request #5157 from pjackson28/addmoretablesortingtypes

Tables: Added sorting for currency and formatted numbers (fixes #5115)