ENYO-1783: When creating a new project, extract the data from app info.json if it exists

* ENYO-1783: When creating a new project, extract the data from app info.json if it exists
* ENYO-1783: Do not show template list while modifying properties of an existing project
* ENYO-1015: Fixed a small typo

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>