Add par_vec, `ParVec` concurrent vector wrapper
update iterator types and fn pointers to Rust master
Move `extern crate test` to #[cfg(test)]
Merge pull request #41 from alexcrichton/cfg-test

Move `extern crate test` to #[cfg(test)]
Merge pull request #39 from apasel422/fixes

update iterator types and fn pointers to Rust master
Merge pull request #21 from cybergeek94/master

`ParVec`: A vector that allows concurrent manipulation of non-overlapping slices.
0.0.7 release
Fixes the doctests -- they weren't running in latest rustc
Merge pull request #43 from cgaebel/fix-tests

Fixes the doctests -- they weren't running in latest rustc
correct `IntervalHeap::from_vec`

closes #40
Merge pull request #45 from apasel422/ih

correct `IntervalHeap::from_vec`