update to Node v0.8.1

node-canvas toDateURL() breaks, found fix on issue #182
then node-waf configure build

update connect, pg, forever

Install Node v0.8.0 on EC2 with Ubuntu 12.04

git cloned git repo, need make, gcc, g++.

compiling takes a while, ./configure report error when gcc is not installed, but no error if no g++ till make reports no g++ later.

t1.micro instance takes much longer than 8-core 16GB laptop