- Most of --as-cran warnings fixed.
- Converting Depends to Imports.  Still in progress.
- Imports fixed, except that the S4 generic for merge that I write is conflicting with RCurl's imported S3 merge, perhaps?
- Finally fixed the conflict with `merge` between RCurl's merge method and this package's.  Solution was to eliminate the S4 generic declaration and rely on implicit generation of an S4 method.