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

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https://hg.mozilla.org/integration/gaia-central/rev/739ec414e24e
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #25835 from viorelaioia/bug_1092195

Bug 1092195 - Investigate failure in test_cost_control_ftu.py

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https://hg.mozilla.org/integration/gaia-central/rev/ffb6927d7020
Author: Viorela Ioia <viorelaioia@gmail.com>
Desc: Bug 1092195 - Investigate failure in test_cost_control_ftu.py

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https://hg.mozilla.org/integration/gaia-central/rev/6b5a7178a208
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #25755 from chirarobert/bug_1090087

Bug 1090087 - Add test for saving an image from a webpage

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https://hg.mozilla.org/integration/gaia-central/rev/ee7698008343
Author: Robert Chira <robertchira@P5075.(none)>
Desc: Bug 1090087 - Add test for saving an image from a webpage

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https://hg.mozilla.org/integration/gaia-central/rev/f9eac9319dcf
Author: Florin Strugariu <florin.strugariu@softvision.ro>
Desc: Merge pull request #25764 from bebef1987/MMS

Bug 1080169 - Update test_sms_with_attachments.py to correlate with the ...

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https://hg.mozilla.org/integration/gaia-central/rev/79eae80aa9c1
Author: Bebe <bebe@mozilla.ro>
Desc: Bug 1080169 - Update test_sms_with_attachments.py to correlate with the manual test
Bumping manifests a=b2g-bump