addition of Appendix CSS for headers/subheaders and associated fixes
Tables now render numbering in the answer key
fixes for learning objectives top/bottom margins/padding and fixes for padding inside table cells
Merge pull request #195 from Connexions/economics-bugfixes

Economics bugfixes
tidy up the glossary slots a bit
tidy up whitespace
simplify glossary mixin arguments
move #glossary from #content to #part
move code back into ccap-base so slots run on all books
regenerate CSS files for all the books
Merge pull request #197 from Connexions/glossary-tidy

Tidy up the glossary mixins
initial merge of glossary-tidy with existing precalc-fixes branch
regeneration of book CSS files for glossary-tidy merge