ENYO-2070, ENYO-2071: Updated documentation for Ares plugins and project templates

* ENYO-2070: Updated documentation for project templates
* ENYO-2070: Updated .gitignore for test/root
* Merge branch 'master' of github.com:enyojs/ares-project into ENYO-2070
* ENYO-2070: Updated regex of json schema (checked with http://jsonschemalint.com/)
* ENYO-2070: Updated documentation for project templates
* ENYO-2070: Updated documentation for project templates
* ENYO-2070: Added json schema for project templates and a README.md with useful links
* ENYO-2070: GET can now be used on folders to get the whole folder content as a FormData with file content encoded in base64 (See ENYO-2055)
* ENYO-2070: Added project templates documentation
* ENYO-2071: Added Ares plugins documentation
* ENYO-2070: Allow template file to be local or remote thru http, added alternateUrl

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>