Bumping gaia.json for 3 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_4/rev/1d342de3321e
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #19139 from crdlc/bug-1008033

Bug 1008033 - [Flame] [e.me Homescreen] Can't show more than 12 elements

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https://hg.mozilla.org/integration/gaia-1_4/rev/ea94a9d8562b
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #19191 from steveck-chung/emergency-cb-mode-fix

Bug 1007441 - Emergency Callback Mode UI not displaying. r=alive

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https://hg.mozilla.org/integration/gaia-1_4/rev/f88e2c889b8a
Author: James Burke <jrburke@gmail.com>
Desc: Merge pull request #19216 from jrburke/bug1009183-email-activity-blank-messages-2

Bug 1009183 - [email] activity launch, return to message list, no messages shown r=asuth
Conflicts:
	apps/email/js/cards/message_list.js
Bumping manifests a=b2g-bump