GA remove district from vote names by splitting on last comma. Names …

…are structure like "John, Jr., 55th", or the special keyword "VACANT"

This fixes the naming issue in ga noted in openstates#1397. This fixes openstates#1360.

openstates/ga/bills.py

@@ -190,7 +190,14 @@ def scrape(self, session, chambers):
                             m = methods[how]
                         except KeyError:
                             m = vote.other
-                        m(whom['Name'])
+
+                        if whom['Name'].upper() == 'VACANT':
+                            name = whom['Name']
+                        else:
+                            # 'Name' contains a name followed by ", XXTH", e.g. "CALDWELL, JR., 55th"
+                            name, _ = whom['Name'].rsplit(', ', 1)
+
+                        m(name.strip())
 
                     bill.add_vote(vote)