Change RefreshToken to refresh_token in FormatRefreshTokenUrl. This matches Salesforce documentation and makes the request valid.
Change RefreshToken to refresh_token in FormatRefreshTokenUrl.
This matches Salesforce documentation and makes the request valid.

dcarroll/Force.com-Toolkit-for-NET,joeferraro/Force.com-Toolkit-for-NET,Compassion/Force.com-Toolkit-for-NET,MediaFriendsInc2/Force.com-Toolkit-for-NET,joshbooker/Force.com-Toolkit-for-NET,caltomare/Force.com-Toolkit-for-NET,shankararunachalam/Force.com-Toolkit-for-NET,nmonasterio/Force.com-Toolkit-for-NET,wadewegner/Force.com-Toolkit-for-NET,aaronhoffman/Force.com-Toolkit-for-NET,developerforce/Force.com-Toolkit-for-NET,developerforce/Force.com-Toolkit-for-NET