Merge branch 'dinges' into develop

* dinges:
  Drop to 1.49.1 for GObject-Introspection (else needs newer glib)
  Add SWIG/3.0.8 for Python/3.5.2 and intel/2016b
  Add pixman/0.34.0 for intel/2016b
  Pango/1.40.3 for intel/2016b
  Cairo for intel/2016b