Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/19d41d666041
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #18892 from crdlc/bug-1004987

Long press results in the [x] showing up on all icons except the one you...

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https://hg.mozilla.org/integration/gaia-central/rev/d3448a1a6333
Author: crdlc <crdlc@tid.es>
Desc: Long press results in the [x] showing up on all icons except the one you long-pressed, which comes in later
Bumping manifests a=b2g-bump