Add 'static' data source to Nanoc core.

The original author of this data source appears to be @ddfreyne. Data source code from here:

    http://pastie.textmate.org/914015

Update `create_site` command to include a stub configuration, routing rule and compilation rule for the static data source.
added canonical url to header

--HG--
branch : 3.1.x
added outdatedness warning to 3.2 documentation
updated links to latest documentation

--HG--
branch : 3.1.x
fixed link to updated documentation

--HG--
branch : 3.1.x
fixed link to updated documentation
fixed canonical url in documentation

--HG--
branch : 3.1.x
fixed canonical url in documentation
updated cri dependency to 2.2.x
removed nanoc3 executable (now in meta package)
updated version to 3.3.2
fixed missing cli require in deploy:rsync task (thanks cakebaker) (fixes #99)
made deployer kind default to rsync for compatibility
made compiler assign snapshots up front (fixes #102)
added missing 3.3.1 tag
fixed encoding of exception message
fixed unrecognised kind deployer error
added release notes for 3.3.2
removed nanoc3 executable from gemspec
added tag for 3.3.2