olddoc 1.4.0

This release fixes one formatting bug.  It also removes the
'builder' dependency to avoid warnings with (<= 3.2.2) and
make this project easier-to-install.

3 changes since v1.3.0 (Dec 2016):

      oldweb/class: add space before superclass method name
      news_rdoc: fix unused variable warning
      remove 'builder' dependency