Bumping gaia.json for 3 gaia-central revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/03858d5335b0
Author: Arthur Chen <crh0716@gmail.com>
Desc: Bug 930222 - Use mdn on cdma devices

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https://hg.mozilla.org/integration/gaia-central/rev/33ad3f55fad4
Author: Cristian Rodriguez <crdlc@tid.es>
Desc: Merge pull request #14218 from crdlc/bug-935094

Bug 935094 - [Download Manager] Download notifications

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https://hg.mozilla.org/integration/gaia-central/rev/afa9c514b995
Author: crdlc <crdlc@tid.es>
Desc: Bug 935094 - [Download Manager] Download notifications

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "9178679dc405112c309c01a96615651a9e73e569", 
+    "revision": "03858d5335b08bcf56f5b816ceed304d4b0d3bdf", 
     "repo_path": "/integration/gaia-central"
 }