[gtk] (9 commits) Non-fast-forward update to branch more-vs-proj-updates

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'more-vs-proj-updates' 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:

  97698a9... win32/generate-msvc.mak: Add rules for gtk30[-properties].p

Commits added to the branch:

  56314b4... Update Abkhazian translation (*)
  2cb920a... Update Catalan translation (*)
  489f219... README.win32: Add note on using OpenGL on Windows (*)
  5da57e7... Merge branch 'win32-nahimic-nv-notes-3' into 'gtk-3-24' (*)
  e7f67bd... win32/generate-msvc.mak: Add rules for gtk30[-properties].p
  30bbcd0... win32/generate-msvc.mak: Add rules to create GDK-Win32 MSVC
  449090a... Visual Studio: Add .gitignore's
  9754c51... gdk/broadway/Makefile.am: Correct build variable
  b14fd13... win32/generate-msvc.mak: Support generating all GDK project

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