minor bug fixes
concordance() now can take sentences as input andwill also show sentence boundaries
lambdaG_visualize() can now the text heatmap eitherwith sentences ordered by lambdaG values (default) or by the originalorder of the sentences in the text
lambdaG_visualize() can now visualize negativelambdaG values in an html file
ngram_tracing() contained a major bug whenperforming tests with multiple known authors which would lead toanomalously high and incorrect performance statistics. This has beenfixed.
performance() progress bar now can beoptional
performance() can run leave-one-out by author ratherthan just by text