Update devel/libfirm to version 1.21.0
Update multimedia/libaacs to version 0.3.0_1
Tweak sysutils/duplicity version 0.6.21
Tweak www/apache24 version 2.4.4_1
Update biology/mopac to version 7.1.11_2,1
Tweak security/heimdal version 1.5.2_4
Tweak devel/log4cxx version 0.10.0_4