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

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https://hg.mozilla.org/integration/gaia-central/rev/ae0795c20938
Author: punamdahiya <punamdahiya@yahoo.com>
Desc: Merge pull request #26373 from punamdahiya/Bug1099458

Bug1099458-[Gallery][RTL]-Fix of not able to swipe in fullscreen view after viewing first image r=djf

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https://hg.mozilla.org/integration/gaia-central/rev/5095c4128346
Author: Punam Dahiya <punamdahiya@yahoo.com>
Desc: Bug1099458-[Gallery][RTL]-Fix of not able to swipe in fullscreen view after viewing first image r=djf
Bumping manifests a=b2g-bump