Apply CC BY-NC-SA 4.0 and Apache 2.0 licenses.
Add section on GUI toolkits.
Fix obvious copy/paste error.
Add Google Analytics tracking code.

Closes #21.
Upgrade to Sphinx 1.2.3.

The Sphinx-Waf internal tool was changed to respect the previous value
of TEXINPUTS.
Add graphical file transfer options for GNU/Linux.
Add sections on SSHFS.
Merge pull request #41 from seanfisk/sean/google-analytics

Add Google Analytics tracking code.
Merge pull request #9 from seanfisk/sean/license

Apply CC BY-NC-SA 4.0 and Apache 2.0 licenses.
Merge pull request #42 from seanfisk/sean/sphinx-1.2.3

Upgrade to Sphinx 1.2.3.
Merge pull request #40 from seanfisk/sean/gui-toolkits

Add section on GUI toolkits.
Merge pull request #45 from seanfisk/sean/sshfs

Add SSHFS and GNU/Linux graphical file transfer options.
Merge branch 'master' into sean/revamp-contribution-guide

Conflicts:
	manual/conf.py
	manual/index.rst