Changes since tag 0.18T

commit f75943495cd3d4c448ab6592f34e6410ca3caec4
Author: John Wellesz <archarodim@teaser.fr>
Date:   Sun Mar 12 00:23:36 2017 +0100

    Add a DEBUG local variable instead of relying on the @debug packager tags which stopped working for libraries about five months ago...
    
    https://www.curseforge.com/forums/wow-sites/wow-sites-feedback/185461-curse-keyword-substitution-not-applied-for

