Share toggle positioning adjustments

When navigation has no secondary elements (i.e. limited to primary elements in the red bar), the red background around the share toggle (needed for contrast conformance) extends beyond the red navigation bar. These positioning adjustments correct this.
Merge pull request #815 from skoolbus39/wdn-nav-share

Share toggle positioning adjustments
Properly quote attribute selectors for one-by-name validation
Whitespace removal
Update compressed validator plugin from source
Merge pull request #817 from kabel/bugfix-816

Properly quote attribute selectors for one-by-name validation
Fix band imagery issue with flipbook showing last instead of first
Merge branch 'develop' of github.com:unl/wdntemplates into develop
Prep for 4.0.24 release with changelog