preview / review of the Edgent website mods (PR-97) for release 1.2.0

[Dale LaBossiere <dl...@apache.org>]

It would be very helpful if some could review the changes that will be made
to the website once 1.2.0 is released.  

You'll need to install Jekyll as noted in the website repo's README.md
at https://github.com/apache/incubator-edgent-website

After cloning and starting a local temp site server (below)
you can open a browser and see the new site content.

See the website PR-97 description for an overview of
of what changed.  Please add comments/feedback there.
https://github.com/apache/incubator-edgent-website/pull/97 <https://github.com/apache/incubator-edgent-website/pull/97>

Maybe start with the updated FAQ page.

Visit the Getting Started page, the new Power of Edgent page,
the new App development page, the new Samples Quickstart page
(all referenced from Getting Started as sell as in the sidebar).

The downloads page is also significantly changed.
Note, the links to the 1.2.0 release aren't yet usable but
everything else should work.

# clone the website repo
git clone https://github.com/apache/incubator-edgent-website.git
cd incubator-edgent-website
git checkout master

# retrieve PR-97
git fetch origin pull/97/head:pr-97
git checkout pr-97

# start a local server for the site using jekyll
# then open http://127.0.0.1:4000/
cd site
jekyll serve
...
    Server address: http://127.0.0.1:4000/
  Server running... press ctrl-c to stop.

Thanks in advance!
— Dale