* CodeGen.pm: Add handlers for 'Alias' variants of most types.

* maps_pango-1.0
* maps_pango-1.4
* maps_pango-1.6
* maps_pango-1.8
* maps_pango-1.10
* maps_pango-1.16
* maps_pango-1.18: Use the above to register Gtk2::Pango::* type
aliases.

* gtk2perl.h: Include pango-perl.h

* Gtk2.pm: Use Pango.  Set up package aliases under Gtk2::Pango::
for the things that now live under Pango::.

* xs/Gtk2.xs: Remove unneeded pango stuff.  Make the doc generator
create stub Gtk2::Pango::* POD pages that explain the situation
and link to the relevant Pango::* docs.

* MANIFEST
* t/pango-compat.t (added): Add some tests that try to ensure
backwards compatibility in ways not tested by the existing
t/Pango*.t tests.

* doctypes
* Makefile.PL: Remove unneeded pango stuff.

* MANIFEST
* pango.typemap (deleted)
* xs/PangoAttributes.xs (deleted)
* xs/PangoCairo.xs (deleted)
* xs/PangoContext.xs (deleted)
* xs/PangoFontMap.xs (deleted)
* xs/PangoFontset.xs (deleted)
* xs/PangoFont.xs (deleted)
* xs/PangoGravity.xs (deleted)
* xs/PangoLayout.xs (deleted)
* xs/PangoMatrix.xs (deleted)
* xs/PangoRenderer.xs (deleted)
* xs/PangoScript.xs (deleted)
* xs/PangoTabs.xs (deleted)
* xs/PangoTypes.xs (deleted)
* xs_files_pango-1.0 (deleted)
* xs_files_pango-1.6 (deleted)
* xs_files_pango-1.10 (deleted)
* xs_files_pango-1.16 (deleted): Remove now unneeded files.

svn path=/trunk/; revision=2089