update docs for newest Middleman; change layout to 4-space tab
re-adding django-formset-js; this is a requirement for the batch tag add functionality and was mistakenly removed
reorganize directory structure for docs files
add Admin section to docs, including screenshot images
docs updates; new pages, updated layout and Middleman config
fix admin site header with new django 1.7 method; fix audio player css
Uncommenting original taginject code