Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/20d2e116f568
Author: Fabien Cazenave <fabien@mozilla.com>
Desc: Merge pull request #17338 from anefzaoui/RTL-Switches

Bug 985165 - (gaia-rtl) Reverse Switches for Right To Left languages, r=kaze

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https://hg.mozilla.org/integration/gaia-central/rev/0b21e59ef47e
Author: anefzaoui <nefzaoui.ahmed@hotmail.com>
Desc: Reversed BB Switches for RTL

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https://hg.mozilla.org/integration/gaia-central/rev/d5bcb38bdf98
Author: Ben Francis <ben@tola.me.uk>
Desc: Merge pull request #17718 from gabrielesvelto/bug-985369-improve-url-input

Bug 985369 - Improve URL input r=benfrancis

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https://hg.mozilla.org/integration/gaia-central/rev/fc67621b6c8e
Author: Gabriele Svelto <gsvelto@mozilla.com>
Desc: Bug 985369 - Clean up all linting issues

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https://hg.mozilla.org/integration/gaia-central/rev/3f81a49f648a
Author: Gabriele Svelto <gsvelto@mozilla.com>
Desc: Bug 985369 - Drop updates to the suggestions that have already been superseded

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "22bcbfd9b22bb0f432376c771d189954756b334e", 
+    "revision": "20d2e116f5689a07f4b39b8432dc5210f66eb039", 
     "repo_path": "/integration/gaia-central"
 }