Fix line-height of third level nav items
Adjust <ul> and <ol> padding in the float view
Only escape HTML once in search index
Revert "Only escape HTML once in search index"

This reverts commit b127b6e798615f821024149bea729f0ae4cc324f.
Use underscore naming convention for "non-pages"
Required assets (`_assets/**` and `_search.json`) are included manually in `_config.yml`. Using this naming convention, "non-pages" can easily be filtered out when looping through `site.pages`.

The fact that `_`'ered pages appear before normal pages also allows valid JSON generation as one can rely on `forloop.last` when inserting object separators.

Lastly, this is the naming convention that will be used when Sass support is added to Jekyll. The future, today!
Merge branch 'master' into gh-pages

* master:
  Use underscore naming convention for "non-pages" Required assets (`_assets/**` and `_search.json`) are included manually in `_config.yml`. Using this naming convention, "non-pages" can easily be filtered out when looping through `site.pages`.
  Revert "Only escape HTML once in search index"
  Only escape HTML once in search index
  Adjust <ul> and <ol> padding in the float view
  Fix line-height of third level nav items