JSHinted the meter polyfill
Plugin to use meta date modified value

Datepicker stuff is included was it was not built in the previous commit
Rebuilt files after merge
Rebuild

Merge tool left lines in files
Fixed background colour for nav-current within a mega menu in the Base theme. Fixed some of the Spanish filler content in the Base theme working examples.
Fixed TBS acronym expansion in English filler content.
Merge branch 'v3.0'
Added HTML5 sessionStorage polyfill
Fixed sessionStorage polyfill working examples.
Made sesionStorage note about cookies more prominent
Fixed French grammar issues in i18n support. Added localStorage working examples (localStorage polyfill was included in v3.0 but not visible). Fixed language link in French Session timeout working example.
Grouped sessionStorage working examples with localStorage working examples from v3.0 (since both HTML5 Web Storage).
Excluded meter.js and sessionstorage.js from JSHint testing because 3rd party scripts. Fixed display issue on English working examples page.
Corrected minor French grammar error
Resolved conflicts
Fixed loading of Meter polyfill
Merge remote-tracking branch 'upstream/master' into feature-date-modified
Rebuild for PR
JSHint fix for plugin global
Performance improvements

Now checks for metatag exists, because the tag is not in Base theme