Auto merge of #244 - nox:heapsize, r=Manishearth

Remove dependency on heapsize_plugin (fixes #243)

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Auto merge of #242 - servo:rustup, r=SimonSapin

Update Rust to 1.13.0-nightly (91f057de3 2016-09-04)

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Auto merge of #241 - nox:euclid, r=nical

Fix the update to euclid 0.10

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Auto merge of #240 - nox:euclid, r=nical

Bump euclid to 0.10 and io-surface to 0.5

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Merge pull request #237 from servo/cleanup

Some cleanup.

Merge pull request #238 from mrobinson/euclid-0.8

Changes to require Euclid 0.8

Auto merge of #236 - nox:euclid, r=pcwalton

Allow euclid 0.7

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Auto merge of #229 - nox:heapsize, r=frewsxcv

Allow heapsize 0.3

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