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

========

https://hg.mozilla.org/integration/gaia-central/rev/eb49324169d6
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Merge pull request #20272 from pivanov/bug-1023124

Bug 1023124 - [Flame][Keyboard] - Missing images

========

https://hg.mozilla.org/integration/gaia-central/rev/e6c545988d3c
Author: Pavel Ivanov <pivanov@mozilla.com>
Desc: Bug 1023124 - [Flame][Keyboard] - Missing images

========

https://hg.mozilla.org/integration/gaia-central/rev/2b97aa14c8e4
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Merge pull request #20441 from stasm/1015255-bamba

Bug 1015255 - Don't leak other localizations during buildtime optimization. r=gandalf

========

https://hg.mozilla.org/integration/gaia-central/rev/64343c3ee2c1
Author: Staś Małolepszy <stas@mozilla.com>
Desc: Bug 1015255 - Don't leak other localizations during buildtime optimizations. r=gandalf
Bumping manifests a=b2g-bump