Added vignettes and RStudio addins

codebook 0.6.3

Additions

• Vignettes for
  • documenting the expected attribute structure, how to add metadata in R
  • importing metadata from SPSS or Stata files
  • importing metadata from Qualtrics as made available by qualtRics package
• Importing some functions from labelled package to add metadata
• Default method for haven::as_factor when labelled class is absent

Changes

• Changed the scale summary, so that Likert plots and distributions are shown
  on the first tab. Reliability now hidden under "Reliability details".
• removed unnecessary readr dependency.

Bugfixes

• summarising factors in a table
• turning off components of the codebook without empty strings being echoed
• allow using variable and value labels in the absence of the labelled class
  (as imported by rio for example)

codebook 0.6.2

Additions

• Three RStudio Addin Shinyapps to browse variable labels and codebook.

Bug fix

• Specify a mice dependency that doesn't break degenerate test cases.