Build: Update JSHint task to use JSHint v1.1.0

Updated to latest Sass gem since changing the properties file will
already trigger a rebuild of the deps
Merge pull request #1758 from nschonni/update-jshint-ant-task-for-JSHint1.1.0

Build: Update JSHint task to use JSHint v1.1.0
Removed code that applied longdesc attribute to Lightbox cboxLoadedContent div (not permitted on non-image elements).
Merge pull request #1760 from pjackson28/v3.0

Removed code that applied longdesc attribute to Lightbox cboxLoadedContentent div (not permitted on non-image elements)
Implemented workarounds for #1432 and #1699.
Merge pull request #1761 from pjackson28/v3.0

Implemented workarounds for #1432 and #1699
Resolved merge conflicts.