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

========

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

========

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

========

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

========

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

========

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Desc: Bug 985369 - Drop updates to the suggestions that have already been superseded
Bumping manifests a=b2g-bump