Issue #2: preparing static pages factory to display data from server json
Issue #2: static pages are now loaded in browser mode
Issue #2: downloading static pages data and images on device
Fixing route resolve that didn't returned a promise, whwich were provoking some 'isDownloaded' null errors
Issue #2: now static pages (and associated images) are downloaded on app startup
Issue #2: parsing content and replacing server url by device ones