completejourney 1.0.0

New features

• Add completejourney vignette to demonstrate basic usage (#1)
• Add a pkgdown site as a web resource for the package (#3)
• Rename key variables to all be character strings with the column name ending in "id" (#7)
• Remove confusing or inconsistent data in the demographics and products datasets (#7)
• Restrict the data to only 2017 to remove some anomalous spending patterns and
  reduce the overall size of the package (#7)
• Re-numbered campaign ID to be 1-27 (#12)
• Created importing capabilities so that large data sets do not need to be included
  in package (due to size).

Bug fixes

• NONE