Make the "boot-server" module compile
Handle empty data files correctly

Without this patch, the following error was displayed when reading an
empty data file:

  undefined method `[]' for false:FalseClass
Merge pull request #30 from yast/handle-empty-data-files

Handle empty data files correctly
Merge pull request #29 from yast/make-boot-server-compile

Make the "boot-server" module compile
Make the "dbus-server" module compile
Merge pull request #31 from yast/make-dbus-server-compile

Make the "dbus-server" module compile