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

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https://hg.mozilla.org/integration/gaia-central/rev/59ee65ad814e
Author: Sergi Mansilla <sergi.mansilla@gmail.com>
Desc: Merge pull request #21547 from sergi/slow-settings

Bug 1024893 - [dolphin][v1.4]Entering settings app takes more than 2.2s r=yurenju r=arthurcc

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https://hg.mozilla.org/integration/gaia-central/rev/3b57821a90e9
Author: Sergi Mansilla <sergi.mansilla@gmail.com>
Desc: Bug 1024893 - [dolphin][v1.4]Entering settings app takes more than 2.2s

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "d869702f6c7b01a581daa04e933a71c7da415795", 
+    "revision": "59ee65ad814e6b355ee281feffde1d2cb15b8a3a", 
     "repo_path": "/integration/gaia-central"
 }