www/pear-twig: update 1.22.3 -> 1.23.0

Changes:

• 1.23.0 (2015-10-29)
  • deprecated the possibility to override an extension by registering another one with the same name
  • deprecated Twig_ExtensionInterface::getGlobals() (added Twig_Extension_GlobalsInterface for BC)
  • deprecated Twig_ExtensionInterface::initRuntime() (added Twig_Extension_InitRuntimeInterface for BC)
  • deprecated Twig_Environment::computeAlternatives()

PR: 204149
Submitted by: Torsten Zuhlsdorff <ports@toco-domains.de> (maintainer)