Fixes a very bad behavior: setting the archive output dir to the install path
If the indented use was to copy the mingw .a files in the install path,
it should be done inside the OCE_BUNDLE_AUTOINSTALL section.
In MSVC is unnecessary.
Travis-ci.org yml configuration file
Fix commit 29e4529

More uses of GLhandleARB had been added into the newer glext.h,
they must be removed.