removed conflicting license types from files

bsd, perl
removed a bunch of not-very-useful POD
Changes: updated for 5.39
moved author tests to xt
Makefile.PL: added MANIFEST.bak to clean section
updated bin/install_deps
updated tests to use %test_params, hopefully fixin

g a fatal test error on some CPAN test servers
version bump for 5.40 release