Bumping gaia.json for 1 gaia-1_3 revision(s) a=gaia-bump
Truncated some number of revisions since the previous bump.

========

https://hg.mozilla.org/integration/gaia-1_3/rev/33369134bc41
Author: Vivien Nicolas <21@vingtetun.org>
Desc: Bug 951298 - placing 5 icons in the dock and then going in and out of edit mode on the homescreen will chop the 5th icon. r=crdlc