[gjs] Created tag 1.57.1

[Philip Chimento <pchimento src gnome org>]

The unsigned tag '1.57.1' was created.

Tagger: Philip Chimento <philip chimento gmail com>
Date: 1555998678 -0700

    Version 1.57.1
    
    - Closed bugs and merge requests:
      * Various maintenance [!279, Philip Chimento]
      * mainloop: Assign null to property instead of deleting [!280, Jason Hicks]
      * Added -d version note README.md [!282, Nauman Umer]
      * Extra help for debugger commands [#236, !283, Nauman Umer]
      * Crash in BoxedInstance when struct could not be allocated directly [#240,
        !285, Philip Chimento]
      * Cairo conversion bugs [!286, Philip Chimento]

Changes since the last tag '1.56.0':

Cosimo Cecchi (6):
      Merge branch '134-dump-heap-error-check' into 'master'
      Merge branch '221-param-unknown' into 'master'
      Merge branch 'fix-gjs-context-eval' into 'master'
      Merge branch 'march-maintenance' into 'master'
      Merge branch '240-fix-boxed-pointer-ownership' into 'master'
      Merge branch 'cairo-conversion-bugs' into 'master'

Jason Hicks (1):
      mainloop: Assign null to property instead of deleting

Nauman Umer (1):
      Update README.md

Philip Chimento (41):
      system: Fix missing error check in dumpHeap()
      build: Post-release version bump
      function: Handle case of a bare GDestroyNotify in a function's args
      function: Free transfer-full in arguments when function fails
      build: Post-branch version bump
      context: Remove lazy flag from evaluated sources
      Merge branch 'patch-1' into 'master'
      context: Fix gjs_context_eval() for non-zero-terminated strings
      Merge branch 'replace-delete' into 'master'
      gtype: Port weak pointer hash table to WeakCache
      value: Support marshalling custom fundamental types
      wrapperutils: Fix function name in comment
      wrapperutils: Factor out to_c_ptr() and transfer_to_gi_argument()
      wrapperutils: Use GIWrapperBase::typecheck() directly in calling code
      boxed: Move to C++-style API
      gerror: Move to C++-style API
      object: Move to C++-style API
      context: Use tracing for promise job queue
      object: Port object_init_list to GCVector
      arg: Factor interface case out of gjs_value_to_g_argument()
      function: Add more marshalling debug logs
      build: Move locale choosing into separate script
      build: Remove GETTEXT_PACKAGE variable
      build: Remove unused defines
      build: Build modules into libgjs
      tests: Don't output generated coverage data
      tests: Don't remove log handler during test
      arg: Remove unused argument
      wrapperutils: Remove unnecessary semicolon
      atoms: Remove unused argument
      context: Change EnvironmentPreparer to protected inheritance
      jsapi-util-args: Remove unused argument
      CI: Discard stdout of cpplint
      wrapperutils: Move TypecheckNoThrow type out of template
      Merge branch 'master' into 'master'
      boxed: Track ownership of boxed pointer better
      cairo: Take may_be_null into account in foreign struct conversion
      cairo: Don't free unowned Cairo structs
      build: Don't distribute generated GResource files
      release: Include NEWS from 1.56.1
      release: Prepare for 1.57.1

namnumr (4):
      bug fix: ignore comment and eval commands
      added summary for debug commands
      added helpText for debugger commands
      debugger: Fix eslint errors