Watchmaker

**Summary**:

* [[Issue 238][238]] Captures all unhandled exceptions and logs them
* [[Issue 234][234]] Stops the salt service prior to managing salt formulas,
to ensure that the filesystem does not throw any errors about the files
being locked
* [[Issue 72][72]] Manages salt service so the service state after
watchmaker completes is the same as it was prior to running watchmaker. If
the service was running beforehand, it remains running afterwards. If the
service was stopped (or non-existent) beforehad, the service remains
stopped afterwards
* [[Issue 163][163]] Modifies the `user_formulas` config option to support
a map of `<formula_name>:<formula_url>`
* [[PR 235][235]] Extracts salt content to the same target `srv` location
for both Window and Linux. Previously, the salt content was extracted to
different points in the filesystem hierarchy, which required different
content for Windows and Linux. Now the same salt content archive can be
used for both
* [[PR 242][242]] Renames salt worker param `content_source` to
`salt_content`
* systemprep-formula
* Deprecated and removed. Replaced by new salt content structure that
uses native salt capabilities to map states to a system
* scc-formula
* Deprecated and removed. Replaced by scap-formula
* scap-formula
* New bundled salt formula. Provides SCAP scans using either `openscap`
or `scc`
* pshelp-formula
* New bundled salt formula. Installs updated PowerShell help content to
Windows systems

[242]: https://github.com/plus3it/watchmaker/pull/242
[235]: https://github.com/plus3it/watchmaker/pull/235
[163]: https://github.com/plus3it/watchmaker/issues/163
[72]: https://github.com/plus3it/watchmaker/issues/72
[234]: https://github.com/plus3it/watchmaker/issues/234
[238]: https://github.com/plus3it/watchmaker/issues/238

**Summary**:

* Uses threads to stream stdout and stderr to the watchmaker log when
executing a command via subproces
* [[Issue 226][226]] Minimizes salt output of successful states, to
make it easier to identify failed states
* join-domain-formula
* (Linux) Exits with stateful failure on a bad decryption error
* mcafee-agent-formula
* (Linux) Avoids attempting to diff a binary file
* (Linux) Installs `ed` as a dependency of the McAfee VSEL agent
* scc-formula
* Retries scan up to 5 times if scc exits with an error

[226]: https://github.com/plus3it/watchmaker/issues/226

**Summary**:

* ash-linux-formula
* Provides same baseline states for both EL6 and EL7

**Summary**:

* ash-linux-formula
* Adds policies to disable insecure Ciphers and MACs in sshd_config
* ash-windows-formula
* Adds `scm` and `stig` baselines for Windows 10
* Adds `scm` baseline for Windows Server 2016 (Alpha)
* Updates all `scm` and `stig` baselines with latest content
* mcafee-agent-formula
* Uses firewalld on EL7 rather than iptables
* scc-formula
* Skips verification of GPG key when install SCC RPM
* splunkforwarder-formula
* Uses firewalld on EL7 rather than iptables

**Summary**:

* [[Issue 180][180]] Fixes bug where file_roots did not contain formula paths

[180]: https://github.com/plus3it/watchmaker/issues/180

**Summary**:

* [[Issue 164][164]] Aligns cli syntax for extra_arguments with other cli opts
* [[Issue 165][165]] Removes ash_role from default config file
* [[Issue 173][173]] Fixes exception when re-running watchmaker

[173]: https://github.com/plus3it/watchmaker/issues/173
[164]: https://github.com/plus3it/watchmaker/issues/164
[165]: https://github.com/plus3it/watchmaker/issues/165