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

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https://hg.mozilla.org/integration/gaia-central/rev/cac2fd9ba039
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Merge pull request #13568 from comoyo/hu_gone

Bug 936579 - Bring back Hungarian autocorrect. r=RudyL

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https://hg.mozilla.org/integration/gaia-central/rev/7572455e16d5
Author: Jan Jongboom <janjongboom@gmail.com>
Desc: Bug 936579 - Bring back Hungarian autocorrect

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "5079071128a3bc1225139d273587b0cc05f5fec7", 
+    "revision": "cac2fd9ba039bad7453e95bda4002621d4fe1faa", 
     "repo_path": "/integration/gaia-central"
 }