Needed in case when label and checkbox (radio?) are in separate elements.

Revert "firing toggle_checkbox and toggle_radio when clicking on custom radio/checkbox elements does not appear to be
necessary since the label already causes this event to be triggered "

This reverts commit dbd23f4a720510cc63c0b0e233abd2493d696ff5.
Handle case when custom checkbox is in other element than label
Merge pull request #2065 from glorpen/checkbox

Fix custom checkbox when in different parent than label