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

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https://hg.mozilla.org/integration/gaia-central/rev/654bad11a349
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20462 from KevinGrandon/bug_1024745_vertical_resume_download_icon

Bug 1024745 - [Vertical Homescreen] Marketplace app shows the default icon if the download has been paused

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https://hg.mozilla.org/integration/gaia-central/rev/763ee84dc87e
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1024745 - [Vertical Homescreen] Marketplace app shows the default icon if the download has been paused r=lightsofapollo

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https://hg.mozilla.org/integration/gaia-central/rev/d4e9321fd242
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #20451 from KevinGrandon/bug_1022976_collection_multi_create

Bug 1022976 - [Collection] Intermittent adding records does not work

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https://hg.mozilla.org/integration/gaia-central/rev/1621739f2735
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1022976 - [Collection] Intermittent adding records does not work r=amirn

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https://hg.mozilla.org/integration/gaia-central/rev/e32ea42e94c8
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Merge pull request #20390 from davidflanagan/bug837674

Bug 837674: add app startup time instrumentation r=Eli

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https://hg.mozilla.org/integration/gaia-central/rev/9dc3817a90a5
Author: David Flanagan <dflanagan@mozilla.com>
Desc: Bug 837674: add app startup time instrumentation

add gallery to the list of apps in the startup events performance test
Bumping manifests a=b2g-bump