Merge pull request #16576 from Whissi/fix_not-found_build_msg

Add missing docstring for templates directory
Another fix for outputter reliability
updated salt.spec file for suse:
this fixes #16560
Fix minor typos.
add slack notification module
correct module name to pyslack.

Remove git install instructions
pylint didn't like the backslash in CLI command
Merge pull request #16578 from stephen-mw/fix-small-typo

Fix minor typos.
Merge pull request #16535 from UtahDave/slack_notify

add slack notification module
Merge branch 'suse_rpm_spec' of https://github.com/aboe76/salt into aboe76-suse_rpm_spec
Merge branch 'aboe76-suse_rpm_spec' into develop
Spelling fixes
Set the cachedir to a relative path
Set the cachedir to a relative path
Set the cachedir to a relative path
Set the cachedir to a relative path
Fix ensure in syspath call
Instead of checking for a live process, check for unread data.

Add a unit test which tests proper behaviour.

Fixes #15941
Merge pull request #16538 from anitakrueger/add-feature-hipchat

New module and state for HipChat
Split `flag_eof` into `flag_eof_stdout` and `flag_eof_stderr`