WIP: Fix deprecations before 3.22
There are many deprecated symbols in Evince, which is convenient to start fixing them.
This particular branch (MR) is for all the deprecated symbols up to 3.22, which is the minimum required version by Evince declared in configure.ac.
A incomplete list of deprecated symbols that we can replace or remove:
-
GtkStock text -
GtkStock icons -
Alternative button order in dialog windows. -
Use G_ADD_PRIVATE and friends.
Edited by Germán Poo-Caamaño