Watchmaker

**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

**Summary**:

* Adds a FAQ page to the docs
* Moves salt formulas to the correct location on the local filesystem
* join-domain-formula:
* (Linux) Modifies decryption routine for FIPS compliance
* ash-linux-formula:
* Removes several error exits in favor of warnings
* (EL7-alpha) Various patches to improve support for EL7
* dotnet4-formula:
* Adds support for .NET 4.6.2
* Adds support for Windows Server 2016
* emet-formula:
* Adds support for EMET 5.52

**Summary**:

* Adds more logging messages when downloading files

**Summary**:

* Initial release!