Set keepalive to 5 seconds in paramiko_ssh.py

This update resolves https://github.com/ansible/ansible/issues/6476.
Return untouhced servers with exact_count
Improve the ec2_snapshot argument spec and docs

ec2_snapshot got missed when moving to a common argument spec.
It could already make use of the capabilities (as it uses
ec2_connect) and the documentation suggested it supported the
common argument spec (thanks to the documentation fragment work)
so it was just a matter of fixing the argument spec.

Removed unnecessary documentation for profile and security_token
that is covered by documentation fragment

Also removed spurious documentation flags (default: null, aliases: [])
which aren't needed.
if key name already exists on tenant, check if public_key is offered that it matches the existing key
open_iscsi module: support RC 21 when listing logged-in target
Don't fail in rax_cbs when the volume is not found
Differentiate machinfo output key/val separator

get_hw_facts for HP-UX: machinfo in HP-UX B.11.23 uses '=' as separator between key and value, while B.11.31 uses ':'.
Update test strategies guide.
Remove duplicate table of contents in Conditionals
added solaris fact detection for ansible_pkg_mgr
Recent BSD su work introduced a failing test. Removed leading space from the assertion that seems to be the culprit.
Merge pull request #7563 from tima/fix-testutils-su

Recent BSD su work introduced a failing test. Removed leading space from...
Correct issue of handlers running on all hosts incorrectly

Also adds an integration test to catch this bug in the future.

Fixes #7559
Fixed documentation for etype parameter on acl module.

The etype parameter just had a copy of the default parameter documentation.
Changed it to reflect what it really is for.
Update test_strategies.rst

Typo - State should have been stage.
Update test_strategies.rst

Changed unit tests to unit test for the singular playbook...
Merge pull request #7532 from oasiswork/devel

open_iscsi module: support RC 21 when listing logged-in target
Merge pull request #7568 from MorrisA/patch-1

Update test_strategies.rst
require pycurl for linode module
Merge pull request #7542 from sivel/rax-cdb-notfound

rax_cbs module: Don't fail when the volume is not found