Auto merge of #197 - servo:homu-build-homu, r=metajack
Auto merge of #197 - servo:homu-build-homu, r=metajack

Use homu to build homu

As per these instructions:

https://github.com/servo/servo/wiki/Adding-a-repo-to-Homu

For the time being, we are going to maintain our own fork of Homu

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rwaweber/saltfs,setupminimal/saltfs,ALikhachev/saltfs,servo/saltfs,servo/saltfs,rwaweber/saltfs,setupminimal/saltfs,UK992/saltfs,ALikhachev/saltfs,UK992/saltfs,ALikhachev/saltfs,rwaweber/saltfs,setupminimal/saltfs,UK992/saltfs