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

========

https://hg.mozilla.org/integration/gaia-central/rev/ee5bb5a36657
Author: Zibi Braniecki <zbigniew.braniecki@gmail.com>
Desc: Merge pull request #20166 from zbraniecki/1021946-transition-away-from-textcontent-in-email-l10n

Bug 1021946 - Transition away from using entity.textContent in Email l10n. r=asuth

========

https://hg.mozilla.org/integration/gaia-central/rev/287d25541153
Author: Zbigniew Braniecki <gandalf@mozilla.com>
Desc: Bug 1021946 - Transition away from using entity.textContent in Email l10n

========

https://hg.mozilla.org/integration/gaia-central/rev/c9acec4c69d2
Author: Zibi Braniecki <zbigniew.braniecki@gmail.com>
Desc: Merge pull request #20165 from zbraniecki/1021942-remove-textcontent-in-calendar-l10n

Bug 1021942 - Transition away from using entity.textContent in Calendar l10n. r=mmedeiros

========

https://hg.mozilla.org/integration/gaia-central/rev/64094b319a43
Author: Zbigniew Braniecki <gandalf@mozilla.com>
Desc: Bug 1021942 - Transition away from using entity.textContent in Calendar l10n
Bumping manifests a=b2g-bump