Extract method on waitForParent
Write a method to update Update.exe
Wire it up
Write a method to update Update.exe inside ApplyReleases, before we run
post-install
Call executeSelfUpdate inside ApplyReleases
Document this
Merge pull request #94 from Squirrel/update-the-updater

Update the Updater
Version bump to 0.5.4
Merge branch 'master' of https://github.com/Squirrel/Squirrel.Windows