annotations: add possibility to overhighlight a maplist term via route projects/1/corpora/81/documents/83/focus=2677 where 2677 is the id of the term to highlight

annotations: filter map from main at initial transmission to avoid interference of the 2 context menus

annotations: working delete from lists (added "ngramlists/change?list=..." as an external service + added chained calls to manage consequences)

api/ngrams/: add ngram_id request possibility (like api/ngrams/?ngram_id=1,2) and ngram_id in output

TIDY: move toolchain.__init__ to main and expose only main function main.parse_extract_indexhyperdata in a new small __init__.py