[vala] (3 commits) Non-fast-forward update to branch wip/issue/606

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/issue/606' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  c7a373a... girwriter: Properly write attributes for non-GObject classe
  d795688... WIP build: Generate GIRs for libvala
  81ba7ec... WIP girwriter: Set GIR namespace and version to the ones re

Commits added to the branch:

  5284e6b... girwriter: Properly write attributes for non-GObject classe (*)
  2eb7bd6... WIP build: Generate GIRs for libvala
  76efc09... WIP girwriter: Set GIR namespace and version to the ones re

(*) This commit already existed in another branch; no separate mail sent