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.
Fix #7711

Fix relative symlinks creation in file module

Signed-off-by: Oleg Bulatov <oleg@bulatov.me>
Ensure ansible_job_id exists even for not-started jobs
Add integration test
zypper: handle lists of packages efficiently
Add support for filtering EC2 instances in dynamic inventory

This allows filtering out EC2 instances based on various different
filters including tags. As requested in 7480 it supports logical "OR"
instead of "AND" on the provided list of filters.
Exit with rc 1 if role doesn't exist/is not found

fixes #8823
	modified:   bin/ansible-galaxy
Make ansible-galaxy work as expected

This change fixes hg galaxy roles
Roles also get installed if roles path is missing, which
the tests currently require (fixes #8950)
Prevents module from failing with "_mysql_exceptions.Warning: Sending passwords in plain text without SSL/TLS is extremely insecure." When not using SSL/TLS.
Add missing version/tag to roles file example.
Rolling termination working.  Fixes #8501.
Allow github style ssh repo names
Merge pull request #8953 from jsmartin/mysql_fix

Prevents mysql_replication from failing with "_mysql_exceptions.Warning: Sending pa...
Add documentation about bin_ansible_callbacks setting.  Standardization and cleanup.
Add version_added info.
Modules are almost always written now by mutliple authors, so don't show this field on website, since it grows obsolete and does not take into account all contributors.
Contributors are still listed on github module source and in repo, and original authors still in the file for when development questions arise, but want
to funnel support questions to the mailing list versus directly to them.
Fix typo in redis cache change from 10afaee1
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.