Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/3800611fa4ae
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20990 from KevinGrandon/land_bug_1027266

Bug 1027266 - [Rocketbar] placing the device in landscape mode after doing a search and tapping in the rocketbar makes the rocketbar small and in the status bar

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https://hg.mozilla.org/integration/gaia-central/rev/8a78212f793f
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1027266 - [Rocketbar] placing the device in landscape mode after doing a search and tapping in the rocketbar makes the rocketbar small and in the status bar, by vingtetun r=alive

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https://hg.mozilla.org/integration/gaia-central/rev/9a01c00b1e18
Author: Timothy Guan-tin Chien <timdream@gmail.com>
Desc: Revert "Merge pull request #20540 from snowmantw/issue970824"

This reverts commit fa1ecd7f9703b6061e6b0a63bc160069ebd91b1f, reversing
changes made to 210754620ef706662c3379eb9fbb53c6e5b21baa.
Bumping manifests a=b2g-bump