Bumping gaia.json for 6 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/80495814ce69
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #17506 from azasypkin/bug_936729

Bug 936729 - [Messages][Sharing]MMS does not return to original app after cancelling or sending message

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https://hg.mozilla.org/integration/gaia-central/rev/8a6aab31da73
Author: Aleh Zasypkin <azasypkin@mozilla.com>
Desc: Bug 936729 - [Messages][Sharing]MMS does not return to original app after cancelling or sending message. Share activity converted from 'window' to 'inline'. r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/54406218a662
Author: Ryan VanderMeulen <rvandermeulen@mozilla.com>
Desc: Merge pull request #16983 from flodolo/bug931119_smslabels

Bug 931119 - [SMS] Localize labels in thread header, don't hardcode separator characters

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https://hg.mozilla.org/integration/gaia-central/rev/c19683cd890a
Author: Francesco Lodolo (:flod) <flod@lodolo.net>
Desc: Bug 931119 - [SMS] Localize labels in thread header, don't hardcode separator character

* Use localizable string to position elements
* Don't hardcode separator characters (' | ', ', ')
* Add 2 tests (different separator characters, fallback for empty separators)

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https://hg.mozilla.org/integration/gaia-central/rev/b93a0e82a8c6
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #18632 from crdlc/bug-991114

Bug 991114 - [Contacts] Invalid text when user delete multiple contacts

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https://hg.mozilla.org/integration/gaia-central/rev/6c070812ad6e
Author: crdlc <crdlc@tid.es>
Desc: Bug 991114 - [Contacts] Invalid text when user delete multiple contacts
Bumping manifests a=b2g-bump