Make `force` attr for `ClientResponse.close()` `True` by default

[asvetlov]

resp.close(force=False) is not safe: you should make sure that all response body has been read.
That can be done by yield from resp.release() call.
So let's change .close() to forcing close behavior. This simplifies response usage rules.

Appliying .close(force=False) should produce DeprecationWarning in next releases (say, until New Year). After that let's remove the parameter completely.

[fafhrd91]

is there other way to force close request socket?

[asvetlov]

@fafhrd91 except resp.close(force=True)? I'm not aware about alternatives.

[fafhrd91]

oh, i misunderstand description. +1

[asvetlov]

Done

[lock]

This thread has been automatically locked since there has not been
any recent activity after it was closed. Please open a new issue for
related bugs.

If you feel like there's important points made in this discussion,
please include those exceprts into that new issue.