Hello everyone! While there was couple of tryouts at the moment, I think PW was lacking decent HTML5 Boilerplate integration so here's a attempt to fix that.
HTML5 Boilerplate for ProcessWire
I took default install dump and stripped it down to bare minimum so it only includes data for Home and 404 pages + Title and Body fields. https://github.com/BlowbackDesign/PW-H5BP/blob/master/site-default/install/install.sql
Default templates folder is modified so that head.inc and foot.inc contain basic HTML5-structure from H5BP and new 404.php is added for 404 page so that it matches H5BPs 404.html page (new redesigned version). Indents are switched from spaces to tabs and all elements are self closed - mostly out of personal preference. https://github.com/BlowbackDesign/PW-H5BP/tree/master/site-default/templates
PW-H5BP is based on current master branch so it's little ahead of v4.3.0. Idea is to keep PW-H5BP up to date with releases of HTML5 Boilerplate.