Update waf to 1.9.11 with valadoc
Update waf to 1.9.11 with valadoc

  * Valadoc module is bundled:*
    https://github.com/waf-project/waf/blob/master/waflib/extras/valadoc.py
  * See also tools/bundle_waf.sh

tiliado/nuvolaruntime,tiliado/nuvolaruntime,tiliado/nuvolaruntime,tiliado/nuvolaruntime