Bumping gaia.json for 4 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/e0863efffa89
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #10325 from KevinGrandon/bug_881744_clock_files

Bug 881744 - Lazy load alarm edit page

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https://hg.mozilla.org/integration/gaia-central/rev/00e7f355859a
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 881744 - Lazy load alarm edit page

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https://hg.mozilla.org/integration/gaia-central/rev/1f9692e96a78
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Merge pull request #10302 from mcirlanaru/bug_881310

Bug 881310 - Add Serbian (Cyrillic) entry. r=stas

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https://hg.mozilla.org/integration/gaia-central/rev/58fefc604727
Author: Mihai Cirlanaru <mihai@cirlanaru.com>
Desc: Bug 881310 - Add Serbian (Cyrillic) entry
Bumping gaia.json for 2 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/c8bffe868520
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #10352 from davidflanagan/bug882197

Bug 882197: remember cursor position after calling replaceSurroundingText r=dhylands

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https://hg.mozilla.org/integration/gaia-central/rev/19cdfadf93a9
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Bug 882197: remember cursor position after calling replaceSurroundingText