[gjs] Created tag 1.55.3

[Philip Chimento <pchimento src gnome org>]

The unsigned tag '1.55.3' was created.

Tagger: Philip Chimento <philip chimento gmail com>
Date: 1544421355 -0800

    Version 1.55.3
    
    - Closed bugs and merge requests:
      * Manually constructed ByteArray toString segfaults [#219, !254, Philip
        Chimento]
      * signals: Add _signalHandlerIsConnected method [!255, Jason Hicks]
      * Various maintenance [!257, Philip Chimento]

Changes since the last tag '1.55.2':

Cosimo Cecchi (2):
      Merge branch '219-bytearray-tostring-crash' into 'master'
      Merge branch 'november-maintenance' into 'master'

Jason Hicks (2):
      signals: Add _signalHandlerIsConnected method
      signals: Fix eslint formatting, make for loop more compact in _signalHandlerIsConnected

Philip Chimento (16):
      build: Post-release version bump
      byteArray: Add checks that object is a Uint8Array
      byteArray: Add 0-length check
      byteArray: Require GLib-2.0 when looking up GBytes info
      Merge branch 'add-_signalHandlerIsConnected' into 'master'
      release: Include NEWS from 1.52.5
      js: Move all functions requiring GjsContext out of jsapi-util
      jsapi-util: Remove unused code
      object: Shorter way to access ObjectPrototype in property accessors
      object: Remove simple wrapper for C++ method
      build: Use new integer sanitizer along with UBsan
      boxed: Fix comments
      union: Use separate memory counters
      boxed: Delete double set of priv->gtype
      context: Fix warning messages
      release: Prepare for 1.55.3