Bumping gaia.json for 2 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/240745fdd79b
Author: Germán Toro del Valle <gtorodelvalle@gmail.com>
Desc: Bug 925307 - [Contacts] In search mode, clicking ENTER on the keyboard exits the search mode (follow-up)

(cherry picked from commit bac2948c4ee6aecdd5d622f47866b9631acbd762)

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https://hg.mozilla.org/integration/gaia-1_2/rev/8d7e2395960b
Author: Germán Toro del Valle <gtorodelvalle@gmail.com>
Desc: Bug 925307 - [Contacts] In search mode, clicking INTRO on the keyboard exits the search mode

(cherry picked from commit 0e085759b69f24ef9c8d1299ed1bd4d7a3268528)