Cut new folder/nav for puppet 3.6 docs
Change a bunch of 3.5s to 3.6s
(DOC-699) Add config file page for environment.conf
Draft of Puppet 3.6 release notes
Fix jira links
Elaborating on Puppet 3.6 release notes
Minor corrections/formatting

Also some more information on the PMT changes
(DOC-753) Add environment_timeout to the allowed settings in environment.conf
Add images to directory environments pages

These may be replaced later by higher-rez versions.
(DOC-753) Describe how to tune environment caching
(DOC-744, DOC-700) Update environment docs with info about deprecations and new features
Puppet 3.6 release notes

Elaborated on some topics, reordered sections
Add known issues to the release note about digest_algorithm
Environment.conf can interpolate other settings like confdir
Move Trusty up into the tested platforms list and remove Raring
Massage the release notes a bit

- Moving things around to reflect relative importance
- Adding some context to several items
Change the RC1 date, add note about known regression
Merge branch 'puppet36'
Add references for 3.6.0-rc1