Bumping gaia.json for 2 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/fefcf4aab784
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #13836 from masap/20131119

Bug 939776 [Keyboard][jp-kanji] Change key notation.
r=rudylu

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https://hg.mozilla.org/integration/gaia-central/rev/f3a3416909e1
Author: masap <masashi.honma@gmail.com>
Desc: Bug 939776 [Keyboard][jp-kanji] Change key notation