Upgrade to the latest version of pelican
Updating for Pelican 3.1.1
Adding PELICAN_VERSION output in pelican install.
Merge pull request #5 from inactivist/pelican-3.1.1

Pelican 3.1.1 changes for review
Fix the buildpack url in the readme, closes #3
Merge remote-tracking branch 'pearkes/master'

Conflicts:
	bin/compile