CRAN Error fix - Fix CRAN error in https://cran.r-project.org/web/checks/check_results_multinets.html
Changed all class tests to use inherits() for compatibility with devel release
CRAN Note fix - Fix CRAN Notes in https://cran.r-project.org/web/checks/check_results_multinets.html
bug fix - correct problems with seting edge colors
Change levels’ distance in layout_multilevel
bug fix - issue #1 - fix if statement with condition length > 1. Changed chain of if statements in mode_transformation to a switch and included an error raise when which argument is missing.
enhance set_shape_multilevel performance with cpp code.
include Rcpp in the project.