[gjs] Created tag 1.50.0

[Philip Chimento <pchimento src gnome org>]

The unsigned tag '1.50.0' was created.

Tagger: Philip Chimento <philip chimento gmail com>
Date: Mon Sep 11 11:44:16 2017 -0700

    Version 1.50.0
    
    - Closed bugs:
    
      * Relicense coverage.cpp and coverage.h to the same license as the rest of
        GJS [#787263, Philip Chimento; thanks to Dominique Leuenberger for pointing
        out the mistake]

Changes since the last tag '1.49.92':

Philip Chimento (3):
      build: Post-release version bump
      coverage: Correct licensing mistake
      release: Prepare for 1.50.0