Reorganization of helpers. Centralized Url/Path logic. Fixed #175.
updating the intro page
Add Kieran Healy's website.
Make per-page url overrides take precedence over section permalink settings

This seems more reasonable to me.

I didn't understand why the pUrl comparision was on len > 2; I changed it to 0.

Closes #212.
Make error message when encountering unrecognized file extensions more helpful
Ignore content files ending in ~

Also add *~ to .gitignore
Add test for ignoring ~$ files
Fixing issues go vet reports.
bumping version for 0.10
Adding the right date for the release of 0.10