[qa] Refactor test_framework and pull tester

* log to stdout
* increase range for p2p and rpc ports
* UPPERCASE_CONSTANTS
* Stop nodes on CTRL+C

qa/rpc-tests/test_framework/test_framework.py

@@ -115,7 +115,7 @@ class BitcoinTestFramework(object):
 
         if self.options.trace_rpc:
             import logging
-            logging.basicConfig(level=logging.DEBUG)
+            logging.basicConfig(level=logging.DEBUG, stream=sys.stdout)
 
         if self.options.coveragedir:
             enable_coverage(self.options.coveragedir)
@@ -148,6 +148,8 @@ class BitcoinTestFramework(object):
         except Exception as e:
             print("Unexpected exception caught during testing: " + repr(e))
             traceback.print_tb(sys.exc_info()[2])
+        except KeyboardInterrupt as e:
+            print("Exiting after " + repr(e))
 
         if not self.options.noshutdown:
             print("Stopping nodes")