Fix the number of tests run
Fix the number of tests run

Properly remove an idle handler after it has run once so that the number of
tests run is predictable.  Also correct a version number in a skip statement.

cpanxaoc/perl-Gtk2,potyl/perl-Gtk2,cpanxaoc/perl-Gtk2,potyl/perl-Gtk2,potyl/perl-Gtk2,cpanxaoc/perl-Gtk2