(SERVER-231) Release story for 1.0.0

This commit moves the CHANGELOG into the documentation subdirectory
and renames it in concordance with the techpubs team's standards.

I also added a note to the 1.0.0 section announcing our semver
adherence and created a link to the JIRA release page.
(MAINT) Version bump before release
Merge pull request #328 from dankreek/MAINT/version-bump-1.0.0

(MAINT) Version bump before release
Merge pull request #327 from ahpook/SERVER-231-release_notes_for_1_0_0

(SERVER-231) Release story for 1.0.0
(docs) Add Jekyll's yaml frontmatter to all docs pages

This will let us display Puppet Server docs on the main website.
(docs) Adjust wording of logging config section
(docs) Fix glitchy markdown and a few broken links

Putting a space between link text and the link URL only works in a few Markdown
implementations. The one our docs site uses can't handle it. :/
(docs) Point to both foss and PE conf.d paths
(docs) Finalized service page for a Puppet Server master

This page is a counterpart to the service information pages about the rack and
webrick masters. It will be displayed alongside them in the Puppet docs.
(docs) Fix glitchy or difficult Markdown formatting

Github's markdown will accept triple-backticks as code block delimiters,
but triple-tildes are more widely compatible. (Currently, the renderer
our docs site uses can't handle the triple-ticks.) This also cleans up
some nested lists to the least common denominator.
(docs) Mark linked setting names as code in puppet_conf_setting_diffs.markdown
(docs) Adjust spacing and headers in release notes
(docs) Add final release notes for 1.0.0