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

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https://hg.mozilla.org/integration/gaia-central/rev/ebf3b9c4789a
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #24330 from jmcanterafonseca/positions_ice_contacts

Bug 1069974 - [Contacts] [ICE] Deleting ICE Contact 1 makes ICE Contact 2 to promote to position 1

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https://hg.mozilla.org/integration/gaia-central/rev/da5d492b1c89
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Bug 1069974 - [Contacts] [ICE] Deleting ICE Contact 1 makes ICE Contact 2 to promote to position 1·

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https://hg.mozilla.org/integration/gaia-central/rev/604e1aecafb9
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #24313 from cctuan/1070843

Bug 1070843 - [Text Selection] Selection bubble is shown when launch message app

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https://hg.mozilla.org/integration/gaia-central/rev/add3e128cd3c
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 1070843 - [Text Selection] hide bubble when reasons contains collapsetoend
Bumping manifests a=b2g-bump