Bumping gaia.json for 5 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/302272596232
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 974809 - Using travis_fold for reading log easily"

This reverts commit 3f94bb17884703e672d5f9eda4ad6a861dcc1a93.

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https://hg.mozilla.org/integration/gaia-central/rev/28e1b95f42c7
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Revert "Bug 1059051 - Convert Keyboard-Symbols.woff to Keyboard-Symbols.ttf""

This reverts commit 7f44b868861c6ad33dc8b081c148365f6390a3eb.

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https://hg.mozilla.org/integration/gaia-central/rev/0dede958ae13
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Revert "Bug 1059051 - Convert Keyboard-Symbols.woff to Keyboard-Symbols.ttf"

This reverts commit 3b462c8f348c3ba01325eeb355078f665754ab7b.

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https://hg.mozilla.org/integration/gaia-central/rev/32c97203ddbc
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Merge pull request #22396 from mnils/Bug-1047115

Bug 1047115

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https://hg.mozilla.org/integration/gaia-central/rev/b82c82d91916
Author: Markus Nilsson <markus.nilsson@sonymobile.com>
Desc: Bug 1047115

Display soft home key while the Utility Tray is open.

b2g/config/gaia.json

@@ -4,6 +4,6 @@
         "remote": "", 
         "branch": ""
     }, 
-    "revision": "d580d431d82137ec5a76aa485731a37c2b179a77", 
+    "revision": "302272596232723cccc9c7013c4bd0bf12be1f1d", 
     "repo_path": "/integration/gaia-central"
 }