Bumping gaia.json for 6 gaia-central revision(s)

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https://hg.mozilla.org/integration/gaia-central/rev/65084cc1f901
Author: George <georgeiscoming@gmail.com>
Desc: Merge pull request #10884 from cctuan/system-1.5x

Bug 881157 - hdpi/xhdpi resolution assets and layout for System app

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https://hg.mozilla.org/integration/gaia-central/rev/825028166040
Author: cctuan <georgeiscoming@gmail.com>
Desc: Bug 881157 - hdpi/xhdpi resolution assets and layout for System app

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https://hg.mozilla.org/integration/gaia-central/rev/d54be8a49829
Author: Fernando Jiménez Moreno <ferjmoreno@gmail.com>
Desc: Merge pull request #10681 from leob2g/Bug_886668_user_cannot_scroll_in_mmi_screen

Bug 886668 - User cannot scroll in mmi screen. r=rik

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https://hg.mozilla.org/integration/gaia-central/rev/29522d5e544f
Author: sungwoo.yoon <sungwoo.yoon@lge.com>
Desc: Bug 886668 - User cannot scroll in mmi screen

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https://hg.mozilla.org/integration/gaia-central/rev/d66534bbe4e4
Author: Francisco Borja Salguero Castellano <fbsc@tid.es>
Desc: Merge pull request #10842 from borjasalguero/uk_context_menu

 Bug 888241 - [B2G][Leo][SMS] Long tapping on a valid phone number or em...

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https://hg.mozilla.org/integration/gaia-central/rev/eba5c59c8de2
Author: borjasalguero <fbsc@tid.es>
Desc:  Bug 888241 - [B2G][Leo][SMS] Long tapping on a valid phone number or email, included in a SMS thread, if it overlaps an option of the dialog menu, it opens it directly r=julienw

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "6256a30275b91614bc4a641111c9dfc6f7dbc876", 
+    "revision": "65084cc1f9017469c15ed1bd40a72f46aa979031", 
     "repo_path": "/integration/gaia-central"
 }