Nlpre

+ Backend NLP engine `pattern.en` has been replaced with `spaCy` v 2.1.0. This is a major fix for some of the problems with `pattern.en` including poor lemmatization. (eg. cytokine -> cytocow)
+ Support for python 2 has been dropped
+ Support for custom dictionaries in `replace_from_dictionary`
+ Option for suffix to be used instead of prefix in `replace_from_dictionary`
+ URL replacement can now remove emails
+ `token_replacement` can remove symbols

Major speed increase for `replace_from_dict`

Bug fixes and other improvements. Fixes 95 and adds `url_replacement` module.

New module:

`separate_reference`: Separates and optionally removes references that have been concatenated onto words.


Key feature of interleukin-1 in Drosophila3-5 and elegans(7).
Key feature of interleukin-1 in Drosophila and elegans .


Major speed improvements for replace from dictionary

Various bug fixes in parenthetical and acronym replacement