Merge pull request #17 from hlindberg/master

Placeholder/wip for arm-7.puppet_types
Assign ARM-10 and set up templates for Lee Lowder's ARM

Closes #18
Update INDEX.md for the new batch of ARMs
Merge pull request #19 from ahpook/master

Updates to INDEX.md and assignment of arm-10
Remove separate mail address for submission

In the interest of simplicity, just send everything through puppet-dev
Simplified the templates directory, added writing prompts

It was confusing to have so many different files in the template
directory, both to authors and readers of the proposals. This
commit simplifies the directory of templates down to one 'index.md'
and fills it out with sections that contain writing prompts taken
from JEP-2 combined with Henrik's previous example text.
Merge pull request #20 from ahpook/master

Simplify the templates directory; add writing prompts
w.i.p arm-2.iteration