cameronbracken/pgfSweave — Issue #37: Pass through setCacheDir and getCacheDir 
Author: halpo
Created: 2011-10-20 16:18:31+00:00
State: open

NAMESPACE needs to be updated to export setCacheDir and getCacheDir not only import them
```importFrom(cacheSweave, "getCacheDir", "setCacheDir")
export("getCacheDir", "setCacheDir")```

this will avoid the error
```R> library(pgfSweave)
R>setCacheDir(".cache")
Error: could not find function "setCacheDir"
Execution halted```