Vala 0.44.1
===========
 * Various improvements and bug fixes:
  - ccodegen:
    + Use unsigned default value for flags-enum
    + Use guint to represent flags-enum in custom GMarshalFunc
  - Move disconnect error from signal-module to semantic-analyzer pass
  - Mark defined constructors of abstract classes as protected
  - parser: Implicit creation method of abstract classes must be protected
  - vala: Allow assignment of 0U to enum types
  - libvaladoc: Don't try to create a Content.ListItem when there is none

 * Bindings:
  - gio-2.0: SocketAddress.from_native() is a factory method not a constructor
  - glib-2.0: Add string.validate_len() since 2.60
  - gstreamer: Update from 1.15.2+ git master
  - gtk4: Update to 3.94.0+f14d998c
  - libgvc: Some additions and ownership/return-type fixes
  - vte-2.90: Mark as deprecated, it was replaced by vte-2.91
  - vapi: Update GIR-based bindings