[libgda] Created tag LIBGDA_5_2_6

[Daniel Espinosa Ortiz <despinosa src gnome org>]

The signed tag 'LIBGDA_5_2_6' was created.

Tagger: Daniel Espinosa <esodan gmail com>
Date: 1538602225 -0500

     - Fixed compilation on MacOS
     - All Vala bindings and Vala extensions are built by default using --enable-vala,
       added --disable* switch to disable some or all of them
     - Fixes on outdated unit tests
     - Removed unused Vala extensions
     - Translations:
        - es (Daniel Mustieles)

Changes since the last tag 'LIBGDA_5_2_5':

Daniel Espinosa (14):
      CI: added broadway for UI tests
      Fix build on MacOS
      Removed non-standard timestamp test
      Set version to 5.2.6
      valac detection improvements
      CI: adding JDK for JDBC provider support at make check
      Improvements to detect dependencies for Vala bindings
      GI build changed behavior
      Expose all Vala related stuff when using --enable-vala
      +Fix installation of Vala bindings
      Fix location of libgda-5.0.vapi for Vala extensions build
      Improved vala extensions build
      Removed unused Vala extensions
      Removed Vala extensions documentation

Daniel Mustieles (1):
      Updated Spanish translation

Piotr Drąg (1):
      Fix Spanish translation header