Easier maintence

[trinker]

• Remove reports package dependency and deprecate reports
• Remove polarity and point to the sentimentr package in NEWS file
  • See if the qdapDictionary can be reduced (e.g. remove qdapDictionaries::key.pol)
• Remove Vignette function

Blog about this and the modern pull offs (sentimentr, textclean, textreadr, textshape) plus other packages that have now made analysis even better (quanted for example).

[pverspeelt]

Is it possible to move the xlsx package to suggests instead of imports. Or maybe switch to openxlsx instead. There are less dependencies with that package. And no java dependency. It looks like write.xlsx is only used in print.qdap_context and in no other functions.