Re-work of Input box icons and other changes

Added icons for Visible search, Tag search and a future All Items
search.  Moved code into their own functions (initTagSearch,
tagSearchIcon).  Used autocomplete to present a list of tags to search
on.  Pressing enter on empty input returns search back to initial search
criteria.
Added total items updating via ajax (probably not the right way but it's
a start).
Removed tooltip Poshytip and for now use title tag and browser tooltip.
Fixed select all checkbox not getting unchecked on unselect.
Added viewable items count update on livesearchinit.
Re-worked livefilter.js for better destroy method.