Add ARM-7.puppet_types

This is the initial check in of a proposal how to define types
using puppet logic.

The proposal is unfinished and subject to change.
Fix misspelled filename of main document. Fix typos.
Merge branch 'master' of ssh://git@github.com/puppetlabs/armatures.git
Merge branch 'master' of ssh://git@github.com/puppetlabs/armatures.git
Update recommendation.

This modifies the recommended "picking" (after having tried writing in
the first recommended style, I found it to be tedious).

Also fixes formatting/numbering of the paragraphs.
Update arm-2.iteration examples

Includes examples picked from the puppet mailing lists and expresses
them in the recommended style.
Merge branch 'master' of ssh://git@github.com/puppetlabs/armatures.git
Merge pull request #13 from jdwelch/master

arm-0 : First crack at a formalized curation process
Merge pull request #16 from jdwelch/master

placeholder for arm-8 and arm-9
Merge branch 'master' of ssh://git@github.com/puppetlabs/armatures.git
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
Update ARM-2. Iteration to 0.2.0

This is a new, reworked version of the proposal. It uses the new
template and more clearly separates the recommended solution from the
alternatives.
Merge pull request #21 from hlindberg/master

Update arm-2.iteration to 0.2.0
Fix bad links to Expression Based Grammar.

Also adds an intro to Expression Based Grammar in the main document.