Auto merge of #61 - servo:gleam, r=jdm

Update to gleam 0.5

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Auto merge of #60 - faern:upgrade-core-foundation, r=jdm

Upgrade core foundation

This is a PR in a series of PRs originating at servo/core-foundation-rs#132

The plan is to make a breaking change to `core-foundation` and release it as `0.5.0`. But before the merge/publish of `core-foundation` I will prepare a set of PRs making sure the entire dependency graph of Servo is ready for this change and can be switched over to `0.5.0` directly.

TODO before merge:
- [x] Merge `core-foundation` PR and publish.
- [x] Remove the last commit from this PR, so we depend on code from crates.io.

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Auto merge of #56 - nox:core-foundation, r=emilio

Update core-foundation to 0.3

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Auto merge of #54 - nox:euclid, r=Ms2ger

Remove dependency on euclid

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Merge pull request #53 from nox/euclid; r=Ms2ger

Update euclid to 0.9

Merge pull request #52 from mrobinson/euclid-0.8

Require euclid 0.8

Auto merge of #51 - nox:stable, r=Manishearth

Compile on stable

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Auto merge of #50 - nox:euclid, r=larsbergstrom

Allow euclid 0.7

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Merge pull request #44 from servo/bump-gleam

Upgrade gleam: 0.1 -> 0.2

Update dependencies.