missing tds
change AddRoleMember* argument name

renaming AddRoleMember-{User,Group}[-Type] arguments to
Add{User,Group}RoleMember[-Role] arguments so they don't
look like {Set,Remove}RoleMember-<role name> arguments.
Two sets are different in meaning and what is expected,
but con conflict if we want to add AddRoleMember-<role name>
argument and we want to add it.
$type is overloaded, rename var so meaning is more clear
fix adding/removing watchers in bulk update

ProcessRoleMembers was desgined for Asset/People.html, so
it was not suitable for bulk updates. It works for roles
with single user, but failed for roles with multiple users
and groups.

Now it works for both pages.
implement "remove all watchers of this type" in bulk update
Merge branch 'bulk-update'

Conflicts:
	html/Elements/Assets/AddPeople