RLS v0.2.4: Better handling of fractions, disabled unpreceded fractio…

…ns until needed

RLS v0.2.3: Fix incorrect andition

REL: Version 0.2.2

Bugfix release - correct parsing of parentheses in expressions

REL: Version 0.2.1

Bugfix release including:
* Fixing floats for large numbers
* Ensuring that numerizer works with any spacy model

ENH: Numerizer as a spaCy extension (#10)

FIX: Replace each big prefix multiple times. (#9)

If a big prefix (million, hundred, thousand) occurs more than once in a
string, only its first occurence gets replaced with the corresponding number. Fixed that.

Case insensitive loookups

First stable release