Bumping gaia.json for 4 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/1efbde01ea46
Author: Julien Wajsberg <felash@gmail.com>
Desc: Merge pull request #19377 from julienw/1012627-use-dot-reporter

Bug 1012627 - Use the "Dot" reporter on Travisr=yurenju

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https://hg.mozilla.org/integration/gaia-central/rev/6caadfca8340
Author: Julien Wajsberg <felash@gmail.com>
Desc: Bug 1012627 - Use the "Dot" reporter on Travis r=yurenju

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https://hg.mozilla.org/integration/gaia-central/rev/868e3c55e1a8
Author: Rudy Lu <me@rudy.lu>
Desc: Merge pull request #18452 from r-gaia-cs/neo-layout

Bug 998299 - Add Neo layout
r=rudylu

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https://hg.mozilla.org/integration/gaia-central/rev/0e9f4d628a9a
Author: Raniere Silva <raniere@ime.unicamp.br>
Desc: Bug 998299 - Add Neo layout

[Neo](http://www.neo-layout.org/) is another layout for keyboards.

Since Neo request at least 11 keys in each line this is a adaptation
of it to mobile devices (a adaptation to Android is available at
https://play.google.com/store/apps/details?id=com.anysoftkeyboard.languagepack.neo2&hl=en).
Bumping manifests a=b2g-bump