Various python3 related changes

- Use relative import for grgsm's modules
- Convert map to list
- Remove the hier_block.py workaround as as gnuradio 3.7 is no longer
  supported in this branch

Change-Id: I5ca8fd340823996e8c444aaf18ddacd85c92ab1c
diff --git a/python/qa_txtime_bursts_tagger.py b/python/qa_txtime_bursts_tagger.py
index bdbf1af..fd15b10 100755
--- a/python/qa_txtime_bursts_tagger.py
+++ b/python/qa_txtime_bursts_tagger.py
@@ -64,8 +64,8 @@
         
         tb.start()
         tb.wait()
-        print "Dupa"
-        print sink
+        print("Dupa")
+        print(sink)
         
         
 #        msg1 = make_msg(1,"lol1")