Allow *http.Client with Timeout set

Fix deadlock introduced in v1.8.5

Closes #231

Patch Accept for Gin

Closes #166

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See https://github.com/agnivade/wasmbrowsertest/issues/15

Closes #235

Undeprecate InsecureSkipVerify

Less strict about message type of JSON payloads

See https://github.com/nhooyr/websocket/issues/174#issuecomment-613403182

It's more clear than * as an origin pattern.

Add automated test and documentation for echo example

Closes #223

Closes #218

Update master with dev

Closes #215

Closes #213

This doesn't affect real world applications due to buffering but
the testss would occasionally fail on CI due to the code not handling
an immediate close after writing the close frame while resetting
the write timeout.

Closes #208

Closes #212

Updates #209

Closes #207