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

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https://hg.mozilla.org/integration/gaia-central/rev/6e8161981435
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #18203 from zbraniecki/934727-use-xmlhttprequest

Bug 934727 - Switch l10n.js to use xhr.addEventListener. r=stas

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https://hg.mozilla.org/integration/gaia-central/rev/069001ac8910
Author: Zbigniew Braniecki <gandalf@mozilla.com>
Desc: Bug 934727 - Switch l10n.js to use xhr.addEventListener. r=stas

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https://hg.mozilla.org/integration/gaia-central/rev/904f11cba3cb
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #18350 from nsarkar/bug987428

Display a pin entry pop-up for RUIM personalization states

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https://hg.mozilla.org/integration/gaia-central/rev/a3905910bf2f
Author: Nivedita Sarkar <nsarkar@codeaurora.org>
Desc: Display a pin entry pop-up for RUIM personalization states

- Add strings for Network1, Network2, Hrpd,
  Ruim Corporate and ServiceProvider perso states

- Add unit tests for the new card states
Bumping manifests a=b2g-bump