The ggjoy package is deprecated and all functionality is now provided by ggridges. This latest version of the package strips ggjoy to the absolute minimum to re-export ggridges functions under their old names for backwards compatibility.

## Test environments
* R devel and R 3.5.0 on win-builder [ via devtools::build_win() ]
* local OS X install x86_64-apple-darwin15.6.0 (64-bit), R 3.5.0

## R CMD check results
There were no ERRORs, WARNINGs, or NOTEs.

## Downstream dependencies

One, package 'rstansim'. It checks clean:

|package  |version | errors| warnings| notes|
|:--------|:-------|------:|--------:|-----:|
|rstansim |0.1.1   |      0|        0|     0|
