Initial commit
Add initial H5BP mobile boilerplate
Drop Modernizr
Drop jQuery
Drop extraneous scripts.
Trim down the readme for now.
Drop crossdomain.xml

Flash is no longer as heavily used as it once was and I cannot see
sufficient need to keep this in place for other use-cases.
Drop startup directory

We don’t require these in Sushi and developers wishing to use start-up
screens will likely want to create these from scratch.
humans.txt - drop jQuery and Modernizr references.
Drop normalize as Pure includes it in the default build.
Include PureCSS
Drop normalize reference.
Add side-bar sample.
Add contents to readme.
Adding in some overview information.
Add initial (Pure-based) style guide
Drop Pure for now.
Adds PatternLab.
Add Gulpfile.
Introduce file renames. Minor restructuring.