MPI bugfixes
Merge branch 'master' of https://github.com/JeffreyRacine/R-Package-np
removed obsolete fast switch from npcdens/dist
removed meaningless references to unordered kernels
Merge branch 'master' of https://github.com/JeffreyRacine/R-Package-np
Merge branch 'master' of https://github.com/JeffreyRacine/R-Package-np