Added new slug extensions

Update to allow {category} and {author} in urlFormat. Can also specify
slug as {slug}
fixed up analytics
fixing bug with url on drafts
Merge pull request #73 from phillip-haydon/FixAnalytics

Fix analytics
Added new slug extensions

Update to allow {category} and {author} in urlFormat. Can also specify
slug as {slug}
Merge branch 'master' of https://github.com/MacsDickinson/Sandra.Snow

Conflicts:
	src/Snow/Extensions/SlugExtensions.cs
updated barbato dlls to contain snow update
filter private posts from the overall list
exclude non-published posts from the series data
Merge pull request #74 from MattsGitCode/master

Private posts are still generated
Merge pull request #72 from MacsDickinson/master

Added new slug extensions
Improved view error message output
Merge pull request #77 from thecodejunkie/improved-error-messages

Improved view error message output