Shorten the header in minified versions.
Sync jshintrc with other projects.
Remove unused variables.
Whitespace and comments.
Don't trigger change event unnecessarily

When initialising the selects, do go through and narrow down the child
options based on currently selected parents, but do so using a function
rather than triggering change on the parents.

Also don’t trigger a change event on the child during normal use if the
parent changes but the selected child option exists in the new set of
options. Instead just re-select it and leave it at that.

Also cleaned up some stuff and used clearer variable names in places.
Fix double quotes
Merge branch 'change_trigger' of https://github.com/brendon/jquery_chained into brendon-change_trigger
Update version number.
Use jQuery instead of Zepto in demos.
Merge branch 'master' into 0.9.x
Prepare for 0.9.9.