Implemented support for timeouts and redirects in the Curl wrapper.
Fixed problem with marking all items as read.
Added link for configuring the active category.
Categories are updated immediately upon update notification.
Integrated Curl HTTP wrapper into application.
Various cleanups.
Increased initial displayed lines of description to 5.
Link elements are now retained in the plain version of item descriptions.
Added parameter to REST API for obtaining either the full or the plain version of item descriptions.
Tweaked display of "expand description" link.