Update www/firefox-esr to version 31.3.0_1,1
Update print/tex-dvipdfmx to version 20140317_2
Tweak math/p5-Math-Symbolic-Custom-Simplification version 1.01_1
Update graphics/oyranos to version 0.9.5_4
Tweak mail/spamd version 4.9.1_2