Fix up comparison running script for rustpkg changes.
Tiny meaningless fixes for the comparison runner.
Make HTTP client example more flexible.
Fix examples bin/client dependency.
Improve efficiency in buffer allocations.
Add a link name for codegen/main.rs.
Update http link metadata.
Revert rustpkg changes from #36/#40 for now.

Why? rustpkg is ignoring -O which is killing performance.
Update comparisons data (we're doing better!).
Update to rust-master.

std::rt::io has been renamed to std::io;
Merge pull request #43 from am0d/rust-master

Update to rust-master.