Allow full control of summaries which can be rendered as html rather
than text. Using a `<!--more-->` html comment in your markdown / rst
you can indiciate where the summary should end and have the summary
converted to html.
Signed-off-by: Noah Campbell <noahcampbell@gmail.com>
Conflicts:
hugolib/page_test.go
sanitizeRegex was stripping dots in permalinks when generating
RenderIndexes (noted during feed/rss generation).
permalink was being set to `.../indexxml` instead of `.../index.xml`.
Adding "dot" to the regex whitelist fixed the issue.