Update for latest Rust
Merge pull request #162 from Arcterus/master

Update for latest Rust
Add stdin (-) support to some programs
Merge pull request #163 from Arcterus/master

Add stdin (-) support to some programs
Update to box/Box<T> syntax.
Merge pull request #164 from ebfe/box-syntax

Update to box/Box<T> syntax.
md5sum: update rust-crypto
Merge pull request #166 from Arcterus/master

md5sum: update rust-crypto
Fix travis
Merge pull request #167 from Arcterus/master

Fix travis
os::args returns Vec<~str> now
transmute moved to std::mem
growable ~[T] -> Vec<T>
from_base64 returns Vec<u8> now
base64: simplify ignore_garbage
env: os.arg() returns Vec<~str> now
env: adapt to new Process API
Merge pull request #168 from ebfe/fix-build-master

Fix build with rust master
add comm
Merge pull request #169 from ebfe/comm

add comm