Leave .git (and other dot files) on make clean.
Changing make github so that it would actually work.
Explicit Date metadata.

This is so that the git mv operation don't mess up the publishing date.
The mapping to a custom URL. See #9.
Adds Github "Fork me" ribbon. See issue #2.
Fixed social network links, and Twitter username for tweet-it button. See issue #3.
Replaced bogus blog roll links with actual ones.