Update to 1.182:

Overview of changes in Gtk2 1.182
=================================

* Correct memory management in Gtk2::ScaleButton::new() and set_icons().
* Fix many build and test suite issues, especially on MSWin32 and cygwin.

Overview of changes in Gtk2 1.181
=================================

* Fix a test failure.
* Fix a Makefile.PL problem encountered by CPAN testers.

Overview of changes in Gtk2 1.180
=================================

Since 1.16x (the previous stable series)
----------------------------------------
  * Add bindings for GtkIMContext, GtkIMContextSimple, and GtkIMMulticontext.
  * Correct the way we check values for definedness.
  * Allow Perl code to implement GtkCellLayoutIface.
  * Allow Perl code to implement GtkBuildableIface.
  * Add accessors for Gtk2::Assistant's buttons.
  * Add Gtk2::Container::forall, Gtk2::Pango::Layout::set_height,
    Gtk2::Pango::Layout::get_height, Gtk2::Pango::LayoutIter_get_layout,
    Gtk2::Pango::Renderer::get_layout, and
    Gtk2::Pango::Renderer::get_layout_line.
  * Improve documentation.
  * Fix many leaks and other memory handling issues.

Since 1.173
-----------
  * Fix test failures.

Overview of changes in Gtk2 1.173
=================================

* Fix memory handling bugs in Gtk2::Gdk::Region::get_clipbox and
  Gtk2::StatusIcon::get_geometry.
* Make Gtk2::Gdk::Pixbuf::new_from_xpm_data handle incomplete XPM data
  gracefully.
* Wrap new API:
  - pango_layout_set_height, pango_layout_get_height
  - pango_layout_iter_get_layout
  - pango_renderer_get_layout, pango_renderer_get_layout_line
* Improve documentation in many places.
* Fix some test failures.

Overview of changes in Gtk2 1.172
=================================

* Improve the documentation significantly in many places.
* Allow Perl code to implement GtkCellLayoutIface.
* Allow Perl code to implement GtkBuildableIface.
* Make Gtk2::CellLayout::set_attributes() properly clear all previous
  attributes.
* Add accessors for Gtk2::Assistant's cancel, forward, back, apply, close, and
  last buttons.
* Add Gtk2::Container::forall.
* Fix build and test suite issues.

Overview of changes in Gtk2 1.171
=================================

* Avoid syntax that was causing perl errors in Gtk2::Builder::_do_connect on
  some platforms.
* Add bindings for GtkIMContext, GtkIMContextSimple, and GtkIMMulticontext.
* Improve the documentation in various places.
* Make Gtk2::Gdk::Color::new take an optional pixel value.
* Correct the way we check values for definedness: use Glib's
  gperl_sv_defined(), an XS version of perl's defined().  Among other things,
  this should fix the problems where tied values were reported as undefined.
* Plug memory leaks.

Overview of changes in Gtk2 1.170
=================================

* Make our build output prettier.
* Publicize our Makefile.PL-time requirements through META.yml's
  configure_requires.
* Fix leak in Gtk2::Pango::Layout::get_iter.
* Fix a few test failures.

(xtraeme)