A negative side-effect of not sorting properly the entries was to
cause raw filter lists to linger in memory due to v8's sliced-
string implementation, which caused the parent string (a whole
filter list possibly) to be kept around forever even though it was
no longer used by uBO (raw filter lists are compiled then discarded).
.jshintrc's otion-set is a personal choice, merely a suggestion.
Beside that, it includes some common globals for specific browsers, so
there's no need to set the globals in every .js file.
In order to force strict coding, "use strict" directive was added into
every .js file.
