Update DESCRIPTION, preparing for submission
Update DESCRIPTION, preparing for submission

- Bumped version.
- Changed Title and Description to conform with --as-cran NOTEs.
- Set myself (Bob Jansen) to role 'cre' as setting myself as maintainer
  seems to require this.

rstudio/rscrypt,rstudio/rscrypt,rstudio/rscrypt,rstudio/rscrypt