Update science/R-cran-eco to version 3.1.5_8
Update devel/R-cran-gbm to version 2.0.8_1
Update finance/R-cran-gmm to version 1.4.5_1
Update finance/R-cran-plm to version 1.3.1_2
Update science/R-cran-som to version 0.3.5_4
Tweak www/mod_tsa version 1.0_3
Update mail/assp to version 1.9.8.13056,1
Import games/bugsquish version 0.0.6_10