Merge pull request rust-lang#179 from alexcrichton/bump

Bump to 0.2.7

Merge pull request rust-lang#155 from alexcrichton/bump

Bump to 0.2.6

Merge pull request rust-lang#142 from alexcrichton/bump

Bump to 0.2.5

Merge pull request rust-lang#106 from alexcrichton/bump

Bump to 0.2.4

Merge pull request rust-lang#103 from alexcrichton/bump

Bump to 0.2.3

Merge pull request rust-lang#54 from alexcrichton/bump

Bump to 0.2.2

Bump to 0.2.1

Bump to 0.2.0