Added hook for configuring Iceweasel start page.
Merge branch 'master' of https://github.com/ypcs/digabi-live

* 'master' of https://github.com/ypcs/digabi-live: (40 commits)
  Fixed versioning.
  If git tag exist for current commit, use it as build version.
  Updated versioning documentation.
  Updated documentation for versioning.
  Restructured package contents.
  Restructured package contents.
  Added command digabi config.
  digabi config get is working now.
  Raise NotImplemented when using set.
  Added stubs for handling get/set.
  Added documentation.
  Added support for switching between global and user-specific config files.
  Added  command.
  Updated root/su configuration.
  If we have root password, do not limit su only to wheel group.
  For now, do not limit HTTP/HTTPS traffic.
  Added TODO item.
  Added stub for browser command.
  Added stub for command config.
  Restructured files.
  ...