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

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https://hg.mozilla.org/integration/gaia-central/rev/d75a1ab1a9f3
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1233525 - Disable apps/homescreen/test/marionette/app_uninstall_pending_test.js

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https://hg.mozilla.org/integration/gaia-central/rev/1a5631f20832
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1233522 - Disabled apps/ftu/test/marionette/late_customization_test.js

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https://hg.mozilla.org/integration/gaia-central/rev/de8fd6b96289
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Merge pull request #33579 from KevinGrandon/bug_1232713_remove_unused_template_ref

Bug 1232713 - Remove references to template.js in app install manager

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https://hg.mozilla.org/integration/gaia-central/rev/cac6edb838e4
Author: Kevin Grandon <kevingrandon@yahoo.com>
Desc: Bug 1232713 - Remove references to template.js in app install manager r=etienne

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https://hg.mozilla.org/integration/gaia-central/rev/76901a0c4b0b
Author: Michael Henretty <michael.henretty@gmail.com>
Desc: Bug 1233517 - Disabled apps/communications/contacts/test/marionette/settings_test.js

b2g/config/gaia.json

@@ -1,9 +1,9 @@
 {
     "git": {
-        "git_revision": "e6a45d4b8d3beebda5b998e4c3860f0ed0e48631", 
+        "git_revision": "5e44a1b4847317f08a33d9295de391fe1b13f9bf", 
         "remote": "https://git.mozilla.org/releases/gaia.git", 
         "branch": ""
     }, 
-    "revision": "a4f3acc5e7c58a8d5dd4bb911eed1aec1abd0595", 
+    "revision": "d75a1ab1a9f31dc330ec3db9c590cab5cc26f724", 
     "repo_path": "integration/gaia-central"
 }