Tweak databases/rrdtool version 1.4.7_2
Update www/p5-Dancer to version 1.3115
Tweak graphics/graphviz version 2.30.1
Update devel/ocaml-findlib to version 1.4
Update audio/py-mutagen to version 1.21
Update devel/py-sip to version 4.14.7,1
Update mail/roundcube to version 0.9.2,1