socket.io-stream: upgrade to 0.6.0.
package: use latest version of all packages except socket.io-stream (need to manually copy socket.io-stream.js to lib/framework/foundation/fs/)
notebook: do not allow special characters such as chinese in path name, use date code instead.
notebook: add SaveURLAs api to download file with URL
notebook: grab resources (images) on other site in the notes and save them in note asset foler