fixes #3752 - move data population from migrations into seed script

fixes #3889 - don't reload nested lookup keys during render, so validation errors aren't lost

Merge branch 'fixes-3872' of git://github.com/ehelms/foreman into ehelms-fixes-3872

Fixes 3872: Provides a better customizable application layout that
conforms to HTML5 best practices.

This change aims to provide a more customizable application layout by first
splitting the base layout, menu and content out into their own view files.
The base layout provides generic hooks and only the most basic common data...

fixed #3905 - wrong route in apidoc for reports delete (API v2)

fixes #2374 - added allocation option to libvirt VM

fixes #3280 - authenticate returns true for API requests when login:false

fixes #1431 - use boardproductname as model fallback if productname or model fact don't exist

refs #3571 - add filter for notice level in report

fixes #3339 - nested fact support, allow fact importers to be registered by plugins