B::CV::GV can return undef as of 5.18.1.
Test against 5.18.1, 5.19.1, 5.19.2 and 5.19.3.
Add Changes.
Bump version number.
v1.07
Don't test against 5.17.x.
Most tests fail on 5.19.2 and 5.19.3.  Skip them.
Update Changes.
Perl 5.18 is more picky about POD encodings.
typo fix
typo fix
typo fix
typo fix
typo fixes
typo fix
Update Changes.
Bump version number.
v1.08
Add mail_contributors script.
Fix spelling error.