[gtksourceview] Created tag 4.3.1

[Christian Hergert <chergert src gnome org>]

The signed tag '4.3.1' was created.

Tagger: Christian Hergert <chergert redhat com>
Date: 1556048753 -0700

    Release 4.3.1

Changes since the last tag '4.2.0':

Christian Hergert (14):
      gtksourcebuffer: set @iter as (nullable)
      stylescheme: raise priority of .current-line-number CSS
      utils: add fast string conversion from Builder
      lines: use fast integer to string conversion
      utils: avoid use of rodata for string conversion speedup
      tests: add conformance check for string conversion
      contextengine: disable highlighting in presence of long lines
      Revert "contextengine: disable highlighting in presence of long lines"
      yaml: simplify map regex
      contextengine: clear invalid ranges if BOM is found
      Bump version for development
      meson: allow use of meson 0.49
      testsuite: remove use of meson 0.50 argument
      Release 4.3.1

Frederik “Freso” S. Olesen (1):
      build: Include fish.lang

Joost (1):
      julia: update syntax to julia versions > 1.0

Jordi Mas (2):
      Update Catalan translation
      Prevents C++ code to be spell checked

Martin Blanchard (1):
      build: Port to the meson build system