Bump versions

[lelandpaul]

I'm working on a variety of version-bumps for Ringing Room. This will require Wheatley to use the latest socketio versions.

This has been tested against a local build of Ringing Room; it will fail against the production RR due to backwards-compatibility issues in socketio.

[lelandpaul]

Not entirely sure how you'd like to handle the build failures. Some are due to the incompatibility with currently-released RR; others look like just incompatibility with python 3.6, but I'm not sure I intend to continue supporting that on RR. Let me know if you need me to do anything more.

[centreboard]

incompatibility with python 3.6, but I'm not sure I intend to continue supporting that on RR

I think we can drop python 3.6 support since lot's of other packages have dropped support.

[centreboard]

This has been tested against a local build of Ringing Room; it will fail against the production RR due to backwards-compatibility issues in socketio.

Not entirely sure how you'd like to handle the build failures

The version of socketio & engineio required when installing Wheatley via PIP is controlled by setup.py

wheatley/setup.py

Lines 33 to 34 in af86f4f

	"python-socketio<5",
	"python-engineio<4",

Since this will be a breaking change for Wheatley and ringing room a process for this could be

1. Just update setup.py in Wheatley, and publish this a a pre-release to pypi 0.8.0b1. This won't work with the current production ringing room
2. Update Ringing room socketio, using the pre release Wheatley
3. Merge in this PR and publish Wheatley 0.8.0, encouraging command line users to update

[lelandpaul]

That process seems good to me. I've gone ahead and bumped the versions in setup.py

[centreboard]

I've published https://pypi.org/project/wheatley/0.8.0b1/ to allow RingingRoom to update with that version