feat(FrequencyLayerManager 4.70): Add support for using bigram frequencies from external corpora for informativity/predictability computations.
fix(flatlexicon-3.2.1): Don't trim whitespace off CSV-imported values, it might be important, e.g. for edge-case bigram frequency entries.
fix: link layer parameters to admin-protected page, and hide it from edit users.
chore: eliminate use of dbtags from layer manager paramters page.
chore: Elimate use of dbtags from auxiliary layer configuration page.
fix: Ensure new controller.jsp doesn't spuriously influence the response content-type.
chore: Eliminate use of dbtags library from layer managers listing page.
fix(nzilbb.annotator.mfa 1.2.1): Don't rename session if name would be too long for PostGres socket path, make file preparation cancelable.