Prevent onkeyenter input field

[ibarbieri]

Bug in autosuggest component

When i'm doing a search i can' t trigger the query on key enter inside the input field.
We fix it commenting //ch.util.prevent(event);

File: https://github.com/mercadolibre/chico/blob/master/src/ui/js/Autocomplete.js#L21

[marcoscaceres26]

This issue has been temporarily addressed in the autocomplete extension by removing the handler function for the ch.onkeyenter and adding a new one.