updates from node v0.11.7
add core-util-is dep
tests from node v0.11.7
Add debuglog optional dep
correct license
floating patch
update floated patch
v1.1.7
update to work on node 0.8

Closes #64
floating patch
v1.1.8
stop overwriting require('stream').*

Closes #66
v1.1.9
add build system to fetch from node core
add test download from joyent/node to build
use ../../ instead of readable-stream
fix test processing
EE.listenerCount for Node 0.8
fixes for build to support node 0.10 & 0.8
updates from node v0.11.10