Duration::milliseconds wants i64 not i32
Use pub const not pub static, as per RFC 69
Merge pull request #13 from benw/master

Fixes for rust 0.13
Update for rust nightly 2014/10/10
  Change statics to consts
  Remove call to deprecated 'Vec::append_one'
More nightly fixes
  Change deprecated [[lib]] to [lib] in Cargo.toml
  Change duration from i32 to i64 in sin.rs
Make "sin" program a test instead of a bin.
Update travis script.
Remove rust-nightly and cargo from apt get.