Refer to previous log, but also verify that records are returning

proper information prior to getting passed into the ColumnCollector.
It seems like some things are getting stripped out due to blank lines
or perhaps the annoying "Record Layout" pages. If we could extract the
"record layout" sections, things may be simpler"

pyaccuwage/pdfextract.py

@@ -137,6 +137,9 @@ class ColumnCollector(object):
         self.empty_rows = 0
         pass
 
+    def __repr__(self):
+        return "<%s: %s>" % (self.__class__.__name__, map(lambda x:x if len(x) < 25 else x[:25] + '..', self.data.values()))
+
     def add(self, data):
         if self.empty_rows > 2:
             raise IsNextField()