gnucash-docs: New Branch '2.6.7'

[John Ralls]

        at  https://github.com/Gnucash/gnucash-docs/tree/6fe62fe918445d0a6eabc15cd72bbed0d6301c2c (tag)
   tagging  177eea325382e63ee996e44d2b864d58df71669e (commit)
  replaces  2.6.6
 tagged by  John Ralls
        on  Sat Jun 27 13:25:30 2015 -0700


Tag 2.6.7

Carl Reinke (1):
      Fix typo

Frank H. Ellenberger (2):
      Add source link and translator comment to Help_txf-categories.xml
      Verbessere Erklärung Soll & Haben

John Ralls (1):
      Release 2.6.7