add after action filter by letting controllers returning ActionResult
update integration test cases to support after action filters
allow setting layout to false
update Response class
add test case 'custom header' to integration test
set header X-Powered-By to TypeFramework
change view and asset path settings
small code refactor for Application.ts
use path.join to join paths relative to app.root
update Configuration to allow adding json config using relative path
create addDeclaration to support adding multiple declaration files later
small update for integration test
update NodeJS.Require interface
add Reply class to be used with Controller and IActionFilterContext)
rename  CookieOption to ICookieOption
remove TF.collections
assign collection directly to user defined models
update node.d.ts