Added image publishing system, and improved installation

* Updated README (and changed to Markdown) 
* Added Makefile, supports: all, npm, config, smf, info, clean 
 - `make npm` - installs node deps (restify)
 - `make config` - generates UUIDs for Creator/Vendor and stores them in config
 - `make smf` - generates the SMF manifest for importing via cvscfg
 - `make info` - Prints steps to complete after installation
 - `make clean` - Resets install to a pristine, pre-make state
 - `make all` or just `make` - Does all of the above (minus clean)
* Added 3 extra options to config.json (to support import-image) 
 - `image-creator` - defaults to "internal", user should change
 - `image-creator-uuid` - auto-generated by make
 - `image-vendor-uuid` - auto-generated by make
* Added import-image script to facilitate publishing images to the server (optional) and supporting documentation 
* Added mkimg script, to be copied and used in global zone (optional) and supporting documentation
* Added package.json for npm install