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

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https://hg.mozilla.org/integration/gaia-central/rev/14a570c0af0a
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #13666 from pivanov/bug-933206

Bug 933206 - [Status Bar] Update Battery Icons

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https://hg.mozilla.org/integration/gaia-central/rev/44a01a11e2dc
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 933206 - [Status Bar] Update Battery Icons