Directly borrowed from the Bootstrap docs again.
Adds * version information * links to the GitHub repository, issues and releases * links to the examples and options * a link to the 3.5.2 docs to the footer as well as namespaced styles for the footer in general as well as all the above.
Also migrated all of the links to the new location in the GitHub organization.
The documentation will be licensed under CC BY 3.0, instead of under the MIT license like the rest of the code.
