[gjs] Created tag 1.50.1

[Gitlab System User <gitlab src gnome org>]

The unsigned tag '1.50.1' was created.

Tagger: Philip Chimento <philip endlessm com>
Date: 1506989136 -0700

    Version 1.50.1
    
    - As a debugging aid, gjs_dumpstack() now works even during garbage
    collection.
    
    - Code coverage tools did not work so well in the last few 1.49 releases.
      The worst problems are now fixed, although even more improvements will
      be released in the next unstable version. Fixes include:
    
      * Specifing prefixes for code coverage files now works again
      * Code coverage now works on lines inside ES6 class definitions
      * The detection of which lines are executable has been improved a bit

Changes since the last tag '1.50.0':

Philip Chimento (12):
      build: Post-release version bump
      stack: Use js::DumpBacktrace() for gjs_dumpstack()
      coverage: Don't error out on various files
      coverage: Scan ES6 classes for functions
      coverage: Correct AST walking for labelled statements
      coverage: Walk AST in more cases
      tests: Create test ASTs by parsing JS
      coverage: Don't count literals as executable
      coverage: Don't mark empty var declarations executable
      coverage: Misc refactors
      coverage: Fix coverage prefixes
      release: Prepare for 1.50.1