Upgraded the version numbers for all dependencies.

Added support for floret embeddings.

Fixed a bug that allowed NaNs to appear in the output of an embedding.

Brush and Hover charts added.

Remove transformers that are never used. Made UMAP, spacy and fasttext an optional dependency.

Added Universal Sentence Encoder.
Removed ConveRT because it was yanked.

Added some minor docs improvements and warnings. The main feature of this release is a patch that fixes a broken ConveRT link.

• Added tests for matplotlib and altair.
• Added plot_3d, allowing you to make some 3d visualisations.
• Added assign as a nicer alternative for add_property.
• Added a citation to an research paper on this library.
• Removed the "helper vectors" from our transformers.

• Added a guide on debiasing on the docs.
• You can now specify the plot axes and title.
• We've changed the internal file structure to prevent people from importing modules.
• We've added sensible default values to "plot_interactive". We now assume that you want to plot the first two elements of a vector.

# Before
emb.transform(Pca(2)).plot_interactive('pca_0', 'pca_1')
# After
emb.transform(Pca(2)).plot_interactive()

• Added some robustness tot he matplotlib based arrow and scatter charts.
• Started deprecating the plot_correlation method in favor of the new plot_distance and plot_similarity methods.