bootstrap nav on both primary and secondary nav locations
Merge branch 'develop' of https://github.com/salcode/bootstrap-genesis into develop

Conflicts:
	lib/nav.php
version bump to 0.3
modify hero-unit styling for improved rendering on small screens
add markup and html id for skip-to-main-content link
add css to style skip-to-main-content link
add change log notes
add backgroundcolors for comments
add default genesis comment css
modify comment css for bootstrap
cleanup comments
remove padding in comment area
update change log
version bump to 0.4