lazy loading failed

[reisner]

I get this error when trying to do `install.packages("viridis"):

* installing *source* package ‘viridis’ ...
** package ‘viridis’ successfully unpacked and MD5 sums checked
** R
** inst
** preparing package for lazy loading
Error : object ‘cividis’ is not exported by 'namespace:viridisLite'
ERROR: lazy loading failed for package ‘viridis’

However, this works:

> library(devtools)
> install_version("viridis", version = "0.4.0")

R version 3.3.3

[sjmgarnier]

@reisner See #47 and #52.

[reisner]

@sjmgarnier Thanks!