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

========

https://hg.mozilla.org/integration/gaia-central/rev/e05aea23af3a
Author: Zac <zcampbell@mozilla.com>
Desc: Merge pull request #20081 from davehunt/bug1020949

Bug 1020949 - Don't kill the vertical homescreen app when killing all apps

========

https://hg.mozilla.org/integration/gaia-central/rev/d172f94750ec
Author: Dave Hunt <dave.hunt@gmail.com>
Desc: Bug 1020949 - Don't kill the vertical homescreen app when killing all apps. r=zcampbell

========

https://hg.mozilla.org/integration/gaia-central/rev/9cd6c3cf93b1
Author: Wilson Page <wilsonpage@me.com>
Desc: Merge pull request #20024 from wilsonpage/1019468

Bug 1019468 - Make <gaia-toolbar>

========

https://hg.mozilla.org/integration/gaia-central/rev/d7b4e07b3524
Author: Wilson Page <wilsonpage@me.com>
Desc: Bug 1019468 - Make <gaia-toolbar>

========

https://hg.mozilla.org/integration/gaia-central/rev/f8b9def59cf5
Author: Mike Habicher <mikeh@mozilla.com>
Desc: Merge pull request #19942 from mikeaich/bug1004567_3

Bug 1004567 - update app to use new get/setThumbnail/PictureSize() methods

========

https://hg.mozilla.org/integration/gaia-central/rev/d7d946ce0eda
Author: Mike Habicher <mikeh@mozilla.com>
Desc: Bug 1004567 - update app to use new get/setThumbnail/PictureSize() methods
Bumping manifests a=b2g-bump