mosaic #290491 dev, deploy, implement method to ease deployment [validation pending]

with a dockerfile for example

prioritynormal
typeenhancement
done in0.1.0
load0.500
load left0.000
closed by<not specified>
patchdocker: add dockerfile to build image from hg repo (related to #290491) [applied]config: add postinstall command in package.json (related to #290491) [applied]server: add script to start server in production mode (related to #290491) [applied]