Example query tests

 - I fixed several .t files that were testing the wrong module (eg t/CodeSearch.t was testing DDG::Spice::SearchCode).
 - I fixed several modules with example queries which did not work.
 - I added tests for all example queries which did not previously have tests.  More than 40 modules did have tests for example queries.

See also: duckduckgo/duckduckgo#59