[feature]Zhihao&Inkie: store config content in db
[feature]Zhihao&Lanying: run viff with stream
[feature]Inkie&Zhihao: extract ConfigStream out.
Merge branch 'development' into store-config-in-db
Zhihao: Merge branch 'development' into store-config-in-db

Conflicts:
	db/tasks/grunt-seeds.js
	lib/builds/builds.js
	lib/runner/index.js
	public/scripts/builds/index.js