round up scattered introduction rules in base
grouped more scattered chapter intro rules
physics grouped more scattered chapter intro rules
physics: removed dead chapter intro rules
biology: group chapter intro rules
anatomy: group chapter intro rules
sociology: regroup chapter into rules
move splash img rules into base
sociology: rewrite chapter intro code block
base: rewrite chapter introduction
sociology: rewrite chapter introduction
base: remove old chapter intro code
Merge branch 'master' into refactor-intro

Conflicts:
	css/ccap-anatomy.less
	css/ccap-biology.css
	css/ccap-biology.less
	css/ccap-physics.css
	css/ccap-physics.less
	css/ccap-sociology.css
	css/ccap-sociology.less
group base chapter titlepage with chapter intro
base and sociology: grouped intro titlepage and toc rules
physics: titlepage, chapter toc, intro refactored
physics: removed dead rules
biology: nest chapter toc within chapter intro
complete refactoring of chapter intro - latest styles
base: removed dead rules - use shorthands