Update devel/protobuf to version 2.5.0_1
Tweak graphics/OpenEXR version 2.1.0_1
Update audio/taglib to version 1.9.1_1
Update dns/p5-Net-DNS to version 0.73
Update devel/rubygem-highline to version 1.6.20
Tweak devel/py-setuptools version 1.1.7_1
Update textproc/asciidoc to version 8.6.9