Fixed a bug where the timezone was always GMT

Fixed a bug in the com.coremedia.livecontext.handler.FragmentCommerceContextInterceptor where the timezone would always be translated to GMT no matter what value it had.

(CMS-22675)

RSS Feed Source for CMChannel Fixed

Method CMChannelImpl#getFeedItems() would return the linked items of page placement main in the wrong type, leaving an RSS feed for a page empty. This is fixed and RSS feeds for a page can now be delivered.

(CMS-17459)