Rust 1.3 is available

Version 1.3 of the Rust language has been released.The announcement listed API stabilization and increased performance work asthe most notable changes. Specifically, there is a newsubstring-matching algorithm, a faster zero-filling methodfor initializing and resizing vectors, and speed-ups to theRead::read_to_end function. The releasenotes provide more detail. Also new in this release is the firstedition of a new Rust programming guide, the Rustinomicon.