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

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https://hg.mozilla.org/integration/gaia-central/rev/5e44ca068953
Author: Aleh Zasypkin <aleh.zasypkin@gmail.com>
Desc: Merge pull request #24563 from azasypkin/bug-1074790-revoke-blob-url

Bug 1074790 - [Messages] We should revoke contact image blob URL when contact or its image is removed. r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/b46116f2080c
Author: Aleh Zasypkin <azasypkin@mozilla.com>
Desc: Bug 1074790 - [Messages] We should revoke contact image blob URL when contact or its image is removed. r=julien

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https://hg.mozilla.org/integration/gaia-central/rev/735d5446ac6d
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #24532 from KevinGrandon/bug_1074512_handle_search_app_filter

Bug 1074512 - [TaskManager] Allow search app role in filter

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https://hg.mozilla.org/integration/gaia-central/rev/f54976d12763
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1074512 - [TaskManager] Allow search app role in filter r=aus
Bumping manifests a=b2g-bump