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

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https://hg.mozilla.org/integration/gaia-1_4/rev/49a9c09d7fad
Author: Douglas Sherk <github@sherk.me>
Desc: Merge pull request #17287 from DouglasSherk/983054-dsds-suggestions

Bug 983054 - [DSDS][Dialer] Only fill active number instead of calling from suggestions bar on dual SIM devices. r=rik

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https://hg.mozilla.org/integration/gaia-1_4/rev/a07ddacae584
Author: steveck-chung <schung@mozilla.com>
Desc: Merge pull request #17330 from steveck-chung/bug-981401

Bug 981401 - [Messages] Notification does not vanish when the SMS is read when going back from sleep. r=arcturus
Conflicts:
	apps/sms/test/unit/activity_handler_test.js

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https://hg.mozilla.org/integration/gaia-1_4/rev/712eb8923a5c
Author: Alive.Kuo <alegnadise@gmail.com>
Desc: Merge pull request #17362 from alivedise/bugzilla/983290_master/orientation-hidden

Do not display perpendicular app on opening, r=timdream

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https://hg.mozilla.org/integration/gaia-1_4/rev/dd0d801067eb
Author: Arthur Chen <crh0716@gmail.com>
Desc: Merge pull request #17067 from crh0716/975265

Bug 975265 - Add the support for LTE network types r=jaoo
Bumping manifests a=b2g-bump