Bumping gaia.json for 1 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/18bd82325a82
Author: Eric O'Connor <eric@bocoup.com>
Desc: Bug 898354 - [User Story] Timer Notification

Add mozAlarms to the timer panel.

Signed-off-by: Mike Pennisi <mike@mikepennisi.com>

b2g/config/gaia.json

@@ -1,4 +1,4 @@
 {
-    "revision": "2805066a7ecfeade772d71c8dc62e1035b500744", 
+    "revision": "18bd82325a82f5b9a3a4b976e213515cd3e5866b", 
     "repo_path": "/integration/gaia-central"
 }