The option caused some race conditions on Firefox, and it is
really made moot by the naturalSearch option anyway.
(imported from commit dc7080c905ced9b2f4ad4275d82549acf09a59f7)
This covers most of the module's functionality, with special
emphasis on lines that use underscore.js (_.each and _.filter).
(imported from commit 074181a0273286a258504be634bdd1cead2eecd5)
Scott Feeney
Steve Howell
Tim Abbott