Update devel/sdl20 to version 2.0.p7291
Import graphics/povray37 version 3.7.0.r6_2
Tweak www/libxul19 version 1.9.2.28_1
Update www/libxul to version 17.0.6
Update www/firefox-esr to version 17.0.6,1
Update www/firefox to version 21.0_2,1
Update www/firefox-i18n to version 21.0
Update www/firefox-esr-i18n to version 17.0.6