Add EOS basics link.
Fix incorrect indentation.
Downgrade to Sphinx 1.2.2.

Sphinx 1.2.3 breaks the build on EOS due to a missing 'upquote.sty'.
Merge branch 'master' of github.com:seanfisk/mastering-eos
Remove reference to manual eventually replacing EOS documentation.
Change wording on rules page.
Remove the run-on.
Change wording from encourage to allow.  Change wording on sentences for better flow.
Propose adding of section on firewall timeouts and GVSU VPN usage.
Merge pull request #3 from seanfisk/mick/link-to-eos-basics

Add EOS basics link.
Fix URL to my SSH configuration.
Fix pip install requirements command.
Source the ~/.bash_profile in the launchd script.
Remove unused line.
Stop Waf warnings about before/after constraints.
Hack around EPUB build failures.
Merge branch 'master' into sean/revamp-contribution-guide
Remove build warning note in contribution guide.