Build: Fix watch:source task

- Ignore sprites so an infinite loop isn't created
- Fix globbing pattern
Merge pull request #3800 from nschonni/v4-fix-watch-source

Build: Fix watch:source task
Demos: add support for querystrings in table link
Added Glyphicons attribution to main WET CSS file (fixes #3785)
Merge pull request #3803 from pjackson28/glyphiconsattribution

Added Glyphicons attribution to main WET CSS file (fixes #3785)
Date picker: Fixed keyboard handling
Merge pull request #3806 from pjackson28/fixcalendarkeyboardsupport

Date picker: Fixed keyboard handling
Share widget: Added min-width to buttons to fix Safari clipping issue (fixes #3779)
Merge pull request #3807 from pjackson28/fixsharewidgetwidth

Share widget: Added min-width to buttons to fix Safari clipping issue (fixes #3779)
Overlay: Added border for IE8 to make the overlay boundaries more visible
Merge pull request #3808 from pjackson28/fixoverlayborderie8

Overlay: Added border for IE8 to make the overlay boundaries more visible
Favicon: added WET theme mobile favicon
Multimedia player: Cleaned up the working examples
Merge pull request #3809 from patheard/favicon-assets

Favicon: added WET theme mobile favicon
Merge pull request #3814 from pjackson28/fixmultimediaplayerexamplepages

Multimedia player: Cleaned up the working examples
Share widget: Reduced to a maximum of 2 columns to avoid a Safari clipping issue (fixes #3779)
Merge pull request #3815 from pjackson28/reduceshareto2colstofixsafariissue

Share widget: Reduced to a maximum of 2 columns to avoid a Safari clipping issue (fixes #3779)
Toggle: fixes to working examples

1. Removed grid cell classes from icons (fixes #3813)
2. Moved buttons above toggle sections for usability.  This stops the
   buttons from shifting up/down as the details elements open/close.
Splash page: Fixed broken links to French license and supporting JS in HBS files.
Merge pull request #3817 from patheard/toggle-icons

Toggle: fixes to working examples