Minor bugfix release OpenGL-0.67
Merge branch 'master' of ssh://git.code.sf.net/p/pogl/code
Disable glutCloseFunc() to work-around segfaults.

A real fix will come with the in progress update to the Perl OpenGL module.
Update ppport.h to more current version
Hack in fix for Strawberry Perl build

This isn't clean but it should allow this release to build
automatically on strawberry perl installs.
Minor cleanup and update Release_Note for 0.6701 release
Update VERSION to 0.67_02 for more development
Update VERSION in OpenGL.pod to match OpenGL.pm

Need to add code to generate the OpenGL.pod with the correct
version as part of making a distribution.
Update docs, readme files, VERSION->0.6702 for CPAN

This release fixes some minor problems discovered with the new,
improved support for Strawberry Perl detection and configuration.
Add MYMETA.yml and MYMETA.json to MANIFEST.SKIP

That should keep them from being added to the distribution
files for the next release.
Update VERSION to 0.6703 for more development

Also some minor fixes to the glpMainLoop handling
for the examples/ code and reduce the timeout duration
of the test.pl from 30sec to 5sec.
Tolerate absence of several extensions removed in Mesa 9.2.0
Update readmes for OpenGL-0.6703 release
Update VERSION info to 0.6704 for more development
!!! skip OpenGL::RPN tests again because they break on my system
updated glext.h to include extensions up to OpenGL 4.2 and used it to generate and update further ancillary files
prepared an xs file for addition of functions needed for gltut
added bindings for glGenVertexArrays and glBindVertexArray
updated freeglut to 2.8.0
added glAttachShader, glDeleteShader, glGetShaderiv_p, glGetShaderInfoLog_p