Changes in way listings are build, now using angular (bootstrap) ui.

Also, changes in package.json and manifest files regarding new version

	modified:   package.json
	modified:   platforms/firefoxos/templates/manifest.webapp
	modified:   platforms/firefoxos/templates/package.manifest
	modified:   www/css/bootstrap.css
	modified:   www/directives/FeedsListing.js
	modified:   www/directives/FoldersListing.js
	modified:   www/directives/ItemsListing.js
	modified:   www/less/mystyle1.less
	modified:   www/public/app.js
	modified:   www/templates/main.html