fixing prereq support for the states:
rdp, reg, win_dns_client, win_firewall, win_path, win_servermanager
private/protected, but CPython subprocess does have these
Merge pull request #6519 from ranl/develop

fixing prereq support for windows states
Fix traceback in mount.mounted state

This fixes a traceback introduced in 0c9bcab3.
Merge pull request #6526 from terminalmage/issue6522

Fix traceback in mount.mounted state
Remove trailing whitespace
Merge pull request #6532 from terminalmage/quickfix

Remove trailing whitespace
Add iptables to state index
Add the salt.states.iptables docs
Merge branch 'develop' into with-pylint-pragmas