Removes security.service

Merges into user.service, moves the umbraco.security module into
umbraco.services, instead of in the root module, we could consider
doing that for umbraco.resources as well.
Adds manual tabs to the header tab collection
Added directives, filters and resources to doc generation
Removed trailing space from ngdoc declaration
Merge branch '7.0.0' of https://github.com/umbraco/Umbraco-CMS into 7.0.0

Conflicts:
	src/Umbraco.Web.UI.Client/src/common/services/util.service.js
	src/Umbraco.Web.UI.Client/src/routes.js