[gjs] Created tag 1.49.3

[Philip Chimento <pchimento src gnome org>]

The unsigned tag '1.49.3' was created.

Tagger: Philip Chimento <philip chimento gmail com>
Date: Mon Jun 19 14:06:47 2017 -0700

    Version 1.49.3
    --------------
    
    - This will be the last release using SpiderMonkey 38.
    - Fixes in preparation for SpiderMonkey 52 [Philip Chimento]
    - Use the Centricular fork of libffi to build on Windows [Chun-wei Fan]
    
    - Closed bugs:
    
      * [RFC] Use a C++ auto pointer instead of g_autofree [#777597, Chun-wei Fan,
        Daniel Boles, Philip Chimento]
      * Build failure in GNOME Continuous [#783031, Chun-wei Fan]

Changes since the last tag '1.49.2':

Chun-wei Fan (4):
      Use std::unique_ptr instead of g_autofree/g_autoptr()
      modules/cairo-*-surface.cpp: Silence compiler warnings
      Windows: Build against SpiderMonkey 52
      Partially revert "Windows: Build against SpiderMonkey 52"

Daniel Boles (2):
      GjsAutoChar: Do not take ownership of const char*
      GjsAutoChar: Add a proper operator= (const char*)

Philip Chimento (8):
      coverage: Drop support for legacy comprehensions
      js: Stop using flags argument to String.replace()
      tests: Root using context, not runtime
      object: Prevent use-after-free in signal connections
      util-root: Require GjsMaybeOwned callback to reset
      autofree: Avoid using local typedefs in classes
      release: Include NEWS from 1.48.4
      release: Prepare for 1.49.3