Add Views and VBO to the makefile, enable them in the profiles, and remove the custom menu items for sites and platforms, as these are handled by our views now.

this decouples the releases of core from aegir, the same way we do
with eldir

we also change the makefiles so that the makefile found by drupal.org
will use the tagged releases while our local makefile will use the git
releases. the trick here is that the hostmaster.make file is first
read by drush make everywhere *except* on drupal.org.

gethostbynamel() returns an array already

the ip_addresses datastructure is now indexed as within the SQL
database, with the serial being the key to the array.

this allows us to individually add/change/remove entries in the IP
list of a server.

this seems to work very well in my manual tests, but it could use a
bit more AJAXy polish and further testing.

this is a workaround for #1975086

Independently fixed in the 7.x-3.x branch

we are too likely to forget changing a random update hook...

hotfix for last commit: the db_name wasn't propagating properly to frontend, by helmo, tests by omega8cc

Issue #1681904 by Jon Pugh, helmo: Added Ability to configure a url to redirect to in site configuration.

Issue #1515416 by millette, helmo: Added On a package page, show table listing sites and platforms using the package.

this decouples the releases of core from aegir, the same way we do
(e.g.) with hosting_platform_pathauto.

the logic here is detailed in #1468874, but basically, eldir is
updated less frequently than other modules, so it's less likely to
have frequent updates. also, splitting it out will allow the theme to
be used by non-aegir installations, and facilitate the D7 port.

Conflicts:
	modules/hosting/site/hosting_site.module

we don't allow users to change the platform path if a makefile was
specified, however, because the verify may have ran and fail because
of a faulty makefile in which case some cruft from the drush make run
may still be lying around in the backend. we don't have this problem
if there's no makefile because it's the admin's responsability to
cleanup after themselves then.

Closes: #1898260

we produce a human-readable error message that is easier to track now
instead of a "Trying to get property of non-object" error.

This can happen when there's an inconsistency in the frontend
database, which can unfortunately happen (for example when you created
a platform without a webserver because of missing error-checking or
erroneous manual data entry).

This is to help diagnosing #1896184