virtualenv is not _really_ required...

It really is a good idea to use a virtualenv for this, but it's not strictly necessary and might simplify getting up and running for some users.
fix rst external link formatting
Merge pull request #13 from uniphil/patch-1

virtualenv is not _really_ required...
[#6] Explain why we don't currently have generated repositories
[#7] Add a license for the code in this repository
Update meta-docs
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  Update meta-docs
  [#7] Add a license for the code in this repository
  [#6] Explain why we don't currently have generated repositories
  fix rst external link formatting
  virtualenv is not _really_ required...