Strip distributed binary

[Glandos]

Currently, the distributed binary is 22MB, not stripped. Could you strip it? Having debug info could be nice, but I prefer not to have it on production.

[IzumiRaine]

This should be easy with one of the next Rust releases, cargo just got an option for stripping: rust-lang/rust#90058 (see also rust-lang/rust#72110).