merge dev

REQUIRE

src/PCA.jl

src/SystemIdentification.jl

src/armax.jl

src/cuckooSearch.jl

src/cuckooSearch.jl.orig

src/idinput.jl

src/kalman.jl

src/kernelPCA.jl

src/least_squares.jl

src/particle_filters/particle_filter_test.jl

src/particle_filters/particle_smoother_RS-FFBSi.jl

src/particle_filters/pf_PG.jl

src/particle_filters/pf_PMMH.jl

src/particle_filters/pf_bootstrap.jl

src/particle_filters/pf_smoother_FFBSi.jl

src/particle_filters/resample.jl

src/particle_filters/utilities.jl

src/rbfmodels/getPsiVec.jl

src/rbfmodels/getPsiVecNd.jl