Bumping gaia.json for 6 gaia-1_2 revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-1_2/rev/7bffbf069b01
Author: Gabriele Svelto <gsvelto@mozilla.com>
Desc: Merge pull request #12813 from gabrielesvelto/bug-922574-pressed-button-image

Bug 922574 - Added a pressed state to the switch-calls button r=etienne(cherry picked from commit 43ecddd2ebb87065728656dde61eb583c8549576)

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https://hg.mozilla.org/integration/gaia-1_2/rev/8feb7f2faa5f
Author: Gabriele Svelto <gabriele.svelto@gmail.com>
Desc: Bug 915074 - Adjust the text size to make it entirely visible r=etienne
(cherry picked from commit 56cef91764416b180907035fa11f0fd95dc9eb2b)

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https://hg.mozilla.org/integration/gaia-1_2/rev/aa45bc8039a4
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #12788 from jmcanterafonseca/fix_fb_dialog

Bug 925602 - [B2G][Contacts] No error message is given when a loss of da...(cherry picked from commit 08f2d40e1b6392fdf80baaeb39b0a939708ab881)

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https://hg.mozilla.org/integration/gaia-1_2/rev/8afcabec2ef1
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Merge pull request #12748 from comoyo/new_ime_webidl3

Bug 906096 - Switch InputMethod to WebIDL in IME tests and FF Nightly. r=RudyL(cherry picked from commit 900348f2118b7d17e0c90f1942976d7da547dcc9)

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https://hg.mozilla.org/integration/gaia-1_2/rev/6c715d994be1
Author: Jose M. Cantera <jmcanterafonseca@gmail.com>
Desc: Merge pull request #12695 from jmcanterafonseca/fix_status_msg_link

Bug 923718 - [B2G][Facebook] No message indicating there is no matching ...(cherry picked from commit f11075cc435290ba210fb211ae5de5bea1325170)

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https://hg.mozilla.org/integration/gaia-1_2/rev/4659b9acb99a
Author: Gabriele Svelto <gabriele.svelto@gmail.com>
Desc: Bug 911247 - Extract the link from a message and make it clickable r=julienw

- Message contents are now parsed and specific fields extracted
- The messages are now stored as parsed objects into a dedicated
  IndexedDB store instead of as raw text into asyncStorage
- Dismissing the application is supported correctly including when the
  view activity is invoked after clicking on a link. As a consequence of
  this attention screens are not used anymore
- Tests have been added to cover most of the functionality