Bump to 0.2.18

At the same time, also add a `publish.rs` script to ease our publishing woes.

0.2.17

Bump to 0.2.17

0.2.16

futures: Add metadata to Cargo.toml

js-sys-0.2.1

futures: Add metadata to Cargo.toml

0.2.15

Tweak travis config

0.2.14

Bump to 0.2.14

0.2.11

Bump to 0.2.11

0.2.10

Bump to 0.2.10

0.2.9

Bump to 0.2.9

0.2.8

Bump to 0.2.8