Vala 0.48.0
===========
 * Various improvements and bug fixes:
  - vala:
    + Fix circular reference in Property/EnumValueType
    + Report an internal error for unavailable context and bail
    + Prevent possible stack-overflow in Class.is_subtype_of()
  - Add missing CodeContext.pop() calls
  - codegen: Add more "low-level" includes of "glib.h"
  - girparser: Decrease return_array_length_idx for transformed function
  - girparser: Delay adding of "GLib.Object" prerequisite to interfaces
  - manual: Update from wiki.gnome.org

 * Bindings:
  - vapi: Update GIR-based bindings

 * Contributors:
   Alberto Fanjul, Arnaud Bonatti, Corentin Noël, Evan Nemerson, Florian Brosch,
   Jeremy Philippe, Michael Gratton, Ole André Vadla Ravnås, Princeton Ferro,
   Rico Tzschichholz, Simon Werbeck