Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_4/rev/e32e114b0471
Author: Paco Rampas <pacorampas@gmail.com>
Desc: Bug 1019359 - Use pointer-events: auto in edit mode so that we don't trigger the checkboxes that are below the buttons r=julien,arnau
Bumping manifests a=b2g-bump