Changes in version 0.1.0                        

  - First release: an R port of the Python package ssdiff 4.0.1, tested
    against reference results written by Python.
  - Wordpack embeddings by tag, name or file, with a shared download
    cache (load_wordpack(), wordpack_cache(), set_abtt()).
  - Texts from strings or token lists (ssd(), with_lexicon()) and
    lexicon tools (suggest_lexicon(), evaluate_lexicon()).
  - Four fits: fit_regression() (PCA regression with covariates, ssd()
    terms, several texts and, through fastglmm, random effects),
    fit_pls() and fit_multipls() (through plskit), and fit_groups();
    contrast() of two gradients.
  - Accessors for words, clusters, snippets and documents, print(),
    summary(), predict(), R's model generics, and the offline results
    page (save_page()).