Corrections to both Tags List views to show images and obey all params

Both the UL and Table list views for com_tags have multiple problems in not checking and/or using set params.  This patch fixes:
1) Don't use Document title in the h2 heading; instead, if for a single tag, shows the title of that tag, if multiple tags, shows each tag title separated by a comma.
2) For a single tag, show image and/or show description appear as expected.
3) For multiple tags, show image and/or show description (as set in the menu item) appear as expected.  This fixes them being shown on a single tag view.
4) Fixes to improperly closed image tags.
5) Adds "Results x - y of z" if show_tag_num_items is set.  Adding this where and how I did may or may not be the correct behavior.  Happy to accept input on that.
6) Added the content events to the Compact Table List (replicating what is done in the UL list) and added checks/display of item image and item description.

This work was started in response to Tracker: http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=33126
Related item here: http://joomlacode.org/gf/project/joomla/tracker/%3Faction%3DTrackerItemEdit&tracker_item_id%3D12376/?action=TrackerItemEdit&tracker_item_id=31115 (regarding incorrect use of Document title)