Banana pudding

Bug fixes

• Fix bug where tmp and dtr could not be returned with tmn or tmx raster
  stacks

• Move rappdirs to SUGGESTS to fix NOTEs on
  https://cran.rstudio.com/web/checks/check_results_getCRUCLdata.html

Minor changes

• Fix documentation formatting issues

• Enhance stop messages for user, just print message, not the function that
  called it to clarify