I have no idea how this requirement shall be implemented at the end, but at first step, the tiss_crawler.rb lib checks if the search_term is an empty string and returns an error msg if found
otherwise it returns the result, but appended to 'content' key
Instead of passing the complete XML response to the page, only the part
where the interesting fields for a course are stored should be passed as
a parameter. It also shortens the code in the html.erb file that is
necessary to pull out the wanted fields.
