v2.0.x: move Runtime to track/Runtime
v2.0.x: update lint tool, travis conf and readme icon
v2.0.x: move Unit > unit/Unit
v2.0.x: refactor tests
v2.0.x: remove fist.io.server dependence
v2.0.0: fix code style
v2.0.x: remove fist.util.streamloader dependence
v2.0.x: remove fist.util.bodyparser dependence
v2.0.x: update npmignore
v2.0.x: update fist.router
v2.0.x: minor refactor
v2.0.x: refactor Server.prototype.route
v2.0.x: stream reading tools refactor
v2.0.x: pass params to BodyParser
v2.0.x: refactor Connect.cookie
v2.0.x: refactor response event
v2.0.x: refactor tests
v2.0.x: Connect test refactor
v2.0.x: support options in body parser
v2.0.x: make Loader.download protected