Fix the docs for glance_image.endpoint_type

The endpoint_type option was added in version 1.7,
so the docs need to state this.  Also the the description
is too brief.
Ensure ansible_job_id exists even for not-started jobs
Add integration test
zypper: handle lists of packages efficiently
Add missing version/tag to roles file example.
Rolling termination working.  Fixes #8501.
Convert boolean strings from set_fact to proper boolean values

Also adds integration tests for booleanification of strings

Fixes #8629
First pass at updating community page by moving CONTRIBUTING.md content onto docsite.
Fix some link formatting.
Fix sidebar notation for Galaxy.
Indents in docs.
Simplify contributing.md

Make it more likely folks will read this page :)
Update CONTRIBUTING.md
Fixing multiline parsing to preserve newlines

Fixes #8813
Include el7 mariadb support in mysql integration test
Merge pull request #8966 from jlaska/devel

Include el7 mariadb support in mysql integration test
Use utils.merge_hash() instead of update for cache merging

Fixes #8968
Merge pull request #8901 from jsmartin/ec2_replace_all

Rolling Instance Replace.  Fixes #8501.
Add PR testing guide (95% from James).
Remove reference to deprecated input mechanism.