Updating to 0.2.1 in CRAN

[EydlinIlya]

Is there a chance the packages will be updated in CRAN anytime soon?
Update has a couple of important fixes, and an ability to have them from CRAN is very handy.

[bruceyyu]

@EydlinIlya Thanks so much. It's on CRAN now https://cran.r-project.org/web/packages/GWalkR/index.html