When updating the package to incorporate a new version of the
flashplugin, please note that the version and sha256sum needs to be
updated in three locations:

  debian/flashplugin-installer.postinst
  debian/flashplugin-installer.config
  debian/post-install-hook

Otherwise, the package will potentially attempt to download an older
version, which will start breaking once that older version is purged
from archive.canonical.com.
