Merge in documentation generation stuff (ansible-lockdown#201)

* initial commit of working docs

* slight Makefile change

* remove lxml requirement and exlude build dir from git

* major updates to docs builder, layout, etc

* update deployer notes and content

* further customization and content updates

* further documentation cleanup and re-org

* add in task and var parsing

* some minor tweaks

* key error fixup

* EOL

* test out rtd theme instead of alabaster

* clean up auto_ files as well

* make metadata templates and notes generic for sharing builder across roles

* make the sphinx ext more generic and put config in conf.py

* some clean up in the docs

* we need sphinx>1.8 in the RTD builder

* make sure our statuses stay ordered

* need to use ordereddict in conf.py

* one more attempt to get RTD to sort controls properly

* something with RTD build process doesnt like sorting this way, try with a list

* add link to not implemented status

* add tag parsing and output to controls

* update documentation with some placeholders

* add a test build for docs to CI

* make the logo black

* minor updates to make Apache license match exactly { -> [ and a newline

uncomment centos test for vagrant

null value in YAML causing issues for Ansible Galaxy import

STIG v1r2 updates (ansible-lockdown#37)

* remove RHEL-07-030790 per V1R2 STIG release

* removed comment about typo in STIG RHEL-07-040330 as it has been correct

* updated RHEL-07-020100 task to reflect changes in V1R2 to use blacklist.conf and blacklist usb-storage

* added capability to specify the boot superuser name

* update README to V1R2

merge ssh and travis fixes from devel (ansible-lockdown#36)

* Validate command must use absolute path (ansible-lockdown#32)

* Validate command must use absolute path

This is a fix for ansible-lockdown#31

* update cat2 validate tasks to use absolute path

* fix for missing host keys

* force pip to upgrade passlib

* Adjust ssh tags to match global format (ansible-lockdown#35)

* Update fix-cat2.yml

* Update fix-cat1.yml

Merge pull request ansible-lockdown#30 from samdoran/master

Update stable master

Firewall Service - Ability to have iptables (ansible-lockdown#20)

* Add firewall service variable to readme

* Add firewall service variable to defaults

* have tasks use variable

* Name the tag as firewall

Updates to the STIG role (ansible-lockdown#16)

* get rid of .retry files in ansible.cfg and update test.yml playbook to correct path

* ignore vagrant files

* add some override variables to vars/main.yml

* add vars for each STIG check, remove audit task vars, and update several others

* update sshd handler name to reflect service name

* move version checks to use assert instead of fail

* comment out audit task files while we work to remove unnessecary audit tasks

* move needed audit/register tasks into prelim.yml file and include it in main.yml

* update STIG ID numbering to V1R1, add conditionals so we can enable/disable each STIG task, and add notimplemented tag to command: "true" tasks

* CAT II: update STIG ID numbering to V1R1, add conditionals so we can enable/disable each STIG task, and add notimplemented tag to command: "true" tasks

* CAT I: update STIG ID numbering to V1R1, add conditionals so we can enable/disable each STIG task, and add notimplemented tag to command: "true" tasks

* update defaults

* add service variables and update aide cron settings

* cat1, cat2, cat3 tasks are working

* move prelim tasks into cat1 file and use blocks to group related tasks

* fixup some cat2 tasks and minor updates to make it work on centos

Merge branch 'devel'