Disable debug info to workaround compiler bug

The bug is [1] and it ought to be fixed at some point.

[1] https://github.com/rust-lang/rust/issues/17257
Merge pull request #19 from aepsil0n/debug_workaround

Disable debug info to workaround compiler bug
Include build status in readme
Merge pull request #21 from aepsil0n/readme_travis_status

Include build status in readme
Fix Travis CI setup

The script was indented too much.