* Add multi-word expression RegexMatcher

spacy/multi_words.py

@@ -0,0 +1,8 @@
+class RegexMerger(object):
+    def __init__(self, regexes):
+        self.regexes = regexes
+
+    def __call__(self, tokens):
+        for tag, entity_type, regex in self.regexes:
+            for m in regex.finditer(unicode(tokens)):
+                tokens.merge(m.start(), m.end(), tag, m.group(), entity_type)