Added getSaleTags to display tags in trade details page.
Added tags to the data pulled in getCurrentSales
****Note: you could change the tradeDetails URL to include the tags so we don't need to do a database call.  I didn't set it up that way, so it is making an extra database call.****
Added a text box and search button to the current sales page.  I suggest removing the text box and button from the nav bar.
Modified the search algorithm to use the tags instead of the description.
Modified the search algorithm to test equality instead of contains.  The search is now more strict, whether that's good or bad, I don't know.
Additionally, the search algorithm now splits both the input string and the tags into arrays.