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

========

https://hg.mozilla.org/integration/gaia-central/rev/5e4665f6e770
Author: Jim Porter <jporter@mozilla.com>
Desc: Merge pull request #20916 from jimporter/fix-large-icon-names

Bug 1029201 - Large app icons are 284px, not 289px

========

https://hg.mozilla.org/integration/gaia-central/rev/6831c69946a1
Author: Jim Porter <jporter@mozilla.com>
Desc: Bug 1029201 - Large app icons are 284px, not 289px; r=kgrandon

This commit was generated by running the following shell commands to move all the files to the proper locations:

  find apps -name "*_289.png" -exec sh -c 'FILE=`echo {} | sed -e "s/289/284/"`; git mv {} $FILE' \;
  find shared -name "*_289.png" -exec sh -c 'FILE=`echo {} | sed -e "s/289/284/"`; git mv {} $FILE' \;
  ln -fs apps/wallpaper/style/icons/wallpaper_284.png apps/homescreen/everything.me/images/wallpaper_284.png
  find apps -name "manifest.webapp" -exec sed -i 's/289/284/g' {} \;

Plus manually editing one instance in apps/browser/index.html
Bumping manifests a=b2g-bump