Auto merge of servo#430 - servo:derive, r=Manishearth

Switch to serde_derive

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Auto merge of servo#357 - nox:euclid, r=nical

Fix the update to euclid 0.10

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Auto merge of servo#356 - nox:euclid, r=nical

Update euclid to 0.10 and offscreen_gl_context to 0.4

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