Deal with iOS which does not follow normal web browser behaviour for
focus.  A touch anywhere outside of the checkbox will cause a submition.
Add gruntfile.js for building the combined file.
jsdoc and other small tweeks.
Added combined and minified files.

Banner on experimental combined file includes message that all
experimental plugins are included.
Both checkbox varients now work on the iphone/ipad.
Requires jinplace-0.11.0+