Log Message:
Remove lang/libperl and modify packages that used libperl to depend
instead on perl>=5.8.0.  Bump the PKGREVISIONs of the following packages
due to the possible perl dependency changes after the removal of
libperl:

	audio/ices-mp3
	databases/postgresql73-plperl
	databases/postgresql74-plperl
	textproc/eperl
	www/ap-perl