xbmc/xbmc — pull request #1879 by Montellese (2012-12-02 13:25:48+00:00)
Title: addons: use the extension-point's version if no minversion (i.e. no <backwards-compatibility> tag) is specified when checking imported extension-points

This is a different approach to solve the problem I first tried to solve with f2596aac4d791f45985b42103fd3737e65b96fb0 which was reverted because it affected all plugins and not just xbmc's addon extension-points. The only real way to figure out whether an addon is an addon or an extension-point is to look for "xbmc." at the beginning of the addon's ID.