Merge pull request #2 from erickt/master

Merging up
Update to latest rust master (0.8-pre 063a005)
Update to latest rust master (0.8-pre d2b0b11)
Update to latest rust master (0.9-pre 69e46f3)
Update for latest master (0.9-pre b42c438)
Update for latest master (0.9-pre 90d06ec)
Update for latest master (0.9-pre b5bab85)
Delete unused main() function

The new dead_code lint warns on this.
Update for latest rustc (0.9-pre ca54ad8)
Merge branch 'master' of https://github.com/kballard/rustcrypto
Update to rust 0.9x-pre