Fix issue with liquid template in razor resource

{{ post.url }} was used instead of @post.url in Razor template for atom
file.
Added support for draft posts

Use draft: true in a page or post to disable publishing
Fix to inherit the permalink from config if not set on the page
Added in a HighlightBlock for DotLiquid to just add a <pre> around any {% highlight %} blocks (so it doesnt break for those using pygments on Github pages)
Merge pull request #109 from IanRandall/master

Fix href in anchor tag for 'older posts' in index.md
Added in the ncrunch stuff again.
Merge pull request #108 from dkarzon/master

Fix to make pages inherit permalinks from config if not set in header
added xml_escape filter to liquid engine
cleanup usings inside HighlightBlock
Merge pull request #113 from shiftkey/XmlEscapeFix

Fix for issue #112
Replaced draft variable with published
Merge pull request #107 from tonyedgecombe/master

Fix for Razor atom template
Make Paginator and Page both inherit Drop so that liquid can render them
missed the csproj from earlier - serves me right for rushing
removed dead file
Fixed test failures and use of -d paths

fixed a problem where the blogger import tests fail if not on the other
side of the date line.

fixed directory pathing if you pass in the -d parameter. It was creating
duplicate levels on bake within -d
updated some dependencies
just rebuild the thing
added attributes file
line endings cleanup