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

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https://hg.mozilla.org/integration/gaia-central/rev/62e4e9a9d7d8
Author: gasolin <gasolin@gmail.com>
Desc: Merge pull request #25600 from gasolin/issue-1090761

Bug 1090761 - [System] load related script by Bluetooth API version, r=alive&ian

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https://hg.mozilla.org/integration/gaia-central/rev/1be5e05c5f1c
Author: gasolin <gasolin@gmail.com>
Desc: Bug 1090761 - [System] init v1 bluetooth related module in system/js/bootstrap module

s

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https://hg.mozilla.org/integration/gaia-central/rev/13f403491bc8
Author: Aleh Zasypkin <aleh.zasypkin@gmail.com>
Desc: Merge pull request #25616 from azasypkin/bug-1081207-revoke-blob-url

Bug 1081207 - [Messages] We never revoke the blob URL for the attachments. r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/5e79a725d784
Author: Aleh Zasypkin <azasypkin@mozilla.com>
Desc: Bug 1081207 - [Messages] We never revoke the blob URL for the attachments. r=julien
Bumping manifests a=b2g-bump