Is this thing still on?

tRakt 0.14.0

Many functions were refactored, which in some cases changes the output.
Not only do most functions return a tibble now, but some additionally computed variables have been removed as well.

Starting to clean things up with some major housekeeping

• usethis::use_* all the things, basically.
• Add a pkgdown site and a README.Rmd
• Use codecov
• Apply styler::style_pkg()
• Update documentation to use markdown
• Redo vignette
• Tests. So many tests.

Less plyr, more purrr

• Completely removed plyr dependency in favor of purrr