Rename post title

Author: alexcrichton

_posts/2015-04-24-FFI-and-Rust.md renamed to _posts/2015-04-24-Rust-Once-Run-Everywhere.md

@@ -1,6 +1,6 @@
 ---
 layout: post
-title: "FFI and Rust"
+title: "Rust Once, Run Everywhere"
 author: Alex Crichton
 description: "Zero-cost and safe FFI in Rust"
 ---