Test with RTD theme locally.
Fix the exception about the missing secret key when generating docs.
Expanded the short intro.

Included more specifics about what you can do with Daguerre.
Added line-breaks to new text in index.rst.
Moved Upgrading from 1.0.X to Installation and Setup.
Streamlined the installation and setup language.
Separated getting started with templates and areas into two pages.
Rewrote parts of the template tag docs.
Adjust is a template tag.
Some updates to Areas docs.
Fleshed out the Areas documentation.
Merge branch 'master' into doc-improvement

Conflicts:
	docs/guides/installation-and-setup.rst
Got rid of duplicate 1.0.X note.

The 1.0.X note should be at the bottom. The primary task of this
page is to tell you how to install from scratch.
Fleshed out Versions and Requirements documentation.

This'll help users figure out if they need to install an older
version of daguerr and how to do so.
Removed $ from the start of bash lines.
It looks nice, but copy/paste is easier without them.
Made the installation note briefer.
Titles cleanup.
Updated docs extras_require in setup.py.
Merge pull request #55 from littleweaver/doc-improvement

Doc improvements