[develop] More SaaS stuff

[Guillaume Boudrias]

I've upgraded Hosting Variables to allow array variables. This is pretty
easy, I'll update the documentation once the Aegir release is out. (The
main use case for this is theme settings.)

I've also pushed Hosting Saas Utils
https://github.com/PraxisLabs/hosting_saas_utils

With SaaS Utils I basically eliminated custom code on my SaaS server.
Let me know if there's any need/interest in putting it on drupal.org.

Until I upgrade getopenoutreach, I'm using my own (French) service as a
proof of concept: http://verslibres.com (don't hesitate to create sites
but please include "test" in the URL).

Cheers,
-- 
Guillaume Boudrias
Praxis Laboratories Coop
http://praxis.coop

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