admin method for disabling auto linebreaks on article pages
docstrings on article model properties
handle ValueError in pagination for querystring values that aren't ints. closes #145
migrate code_detail js from media dir to static
migrate gridfilter/listfilter js from media to static
migrate fallback jquery from media to static
migrate article syntaxhighlighter js from media to static
proper width handling for syntaxhighlight prettyprint
remove unneeded media/js dir
remove unnecessary import
add "learning" as optional category for Article model
toc links for articles in learning category