Fixes #4369 - Added link to filters page on RBAC form

Load filters table in roles UI via ajax
Fixes #5139 - leftovers subscribe_to_all_hostgroups

Remove user_xxx unnecessary tables and notices

Update subhostgroups removed

Fixes for migration of foreign keys

Remove users from compute_resource fixture

Remove table notices after fk are removed for pg/mysql
refs #7401 - fix markdown syntax in API doc
fixes #7876 - filter Organization.my_organizations by org, not locaion
Fixes #7884 - Display Fog errors on vm operation
Fixes #7886 - Compute Resources should be ordered by name
Fixes #7587 - Adds client-side password validation
i18n - extracting new, updating rails, pulling from tx
refs #7587 - precompile pwstrength JS, move gem from runtime deps
refs #7876 - my_organizations/locations tests
Fixes #7861 - Update rubocop version
fixes #7805 - Add several security related HTTP headers - security hardening.

This commit uses secure_headers gem and configures several HTTP
security related headers to be sent by server:
* Content Security Policy
* HTTP Strict Transport Security
* X-XSS-Protection
* X-Frame-Options
* X-Content-Type-Options
All of these enable browser protections on client side and make
exploitation of common web flaws harder.
Fixes #6214 - Alphabetical menu sorting in the UI
refs #7861 - remove trailing whitespace
fixes #7907 - Allow images from gravatar on secure headers
Refs #7587 -  Refactor password confirmation

* confirmation status is now linked to password field
* extracted additional missing strings
* simplified jquery selectors
* switched to onKeyUp built in event
* hide progress bar by default
* fixed minor css
* handle empty pw/confirmation
* moved javascript/stylesheet into partial instead of new/edit
* moved inline js to onContentLoad event.
Fixes #7879 - Update fog to 1.24.0
Fixes #2283 , #3135 - add config option for proxy_request_timeout
fixes #7332 - Host Create API documentation missing required parameters
fixes #3492 - API v2 nested routes for each controller