ENYO-2053: At "node ide.js" start time, merge the configuration coming from ide.json of Ares and Ares plugins

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>
ENYO-2053: Take into account only non empty projectTemplateRepositories entries

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>
ENYO-2053: Catch errors coming from setConfig() method of plugins

Enyo-DCO-1.1-Signed-off-by: Yves Del Medico <yves.del-medico@hp.com>