build: improve platform portability
dep: serve-index@1.0.2
dep: connect-timeout@1.0.1
Patch res.headerSent to return Boolean
Patch res.headersSent for node.js 0.8
Add simple res.cookie support
dep: express-session@1.0.4
Prevent default 404 handler after response sent

fixes #1023
dep: compression@1.0.2
dep: connect-timeout@1.1.0
dep: errorhandler@1.0.1
Call error stack even when response has been sent

fixes #1032
docs: remove old copyright line
Reduce hidden class churn of response object
Add res.appendHeader
dep: debug@^0.8.0
dep: serve-favicon@2.0.0
docs: add NPM badge
tests: remove test that doesn't work on windows
docs: include history of deps inline