fa5587fe71 qa: wait_for_verack by default (MarcoFalke)
Pull request description:
This removes the need to do so manually every time a connection is added.
Tree-SHA512: a46c92cb4df41e30778b42b9fd3dcbd8d2d82aa7503d1213cb1c1165034f648d8caee01c292e2d87d05b0f71696996eef5be8a753f35ab49e5f66b0e3bf29f21
Makes following changes to fix and tidy up p2p-versionbits-warning.py:
- add node alias in the run() method
- call versionbits_in_alert_file() in a wait_until loop.
- don't clear out the alert.txt file
- explicitly comment why the node needs to be stop-started
- Verify that the node is out of IBD after stop-start (nodes in IBD do
not generate alert messages)
- no need to subclass P2PInterface
