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

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https://hg.mozilla.org/integration/gaia-central/rev/494dce9a5bbb
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #22061 from KevinGrandon/bug_1042534_debug_test

Bug 1042534 - Failing test, TEST-UNEXPECTED-FAIL | /builds/slave/test/gaia/apps/verticalhome/test/marionette/search_test.js | Vertical - Search General walkthrough

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https://hg.mozilla.org/integration/gaia-central/rev/d96ae60a3be8
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1042534 - Failing test, TEST-UNEXPECTED-FAIL | /builds/slave/test/gaia/apps/verticalhome/test/marionette/search_test.js | Vertical - Search General walkthrough r=etienne

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "0da80bf5b2cefdc1a0c3653f7a8ad861ee9a7786", 
+    "revision": "494dce9a5bbb1baed5fcb5a57d4aed28cbfdf85f", 
     "repo_path": "/integration/gaia-central"
 }