Gruntfile.js : Change grunt watch command to run concat:notMiny, since it appears to be the source of files necessary for autocomplete to work correctly.
footer.php: use get_stylesheet_directory_uri() intead to build script src
master.min.js & master.notMiny.js: updated via grunt
soilsextension_custom.js: removed functions that were previously used in failed attempt at jquery autocomplete
page-wpdb.php: file removed because it is no longer relevant since we have a working instance of autocomplete