updating docs and version for release 0.11.4

[ajmirsky]

Changes included in this PR

• disable TLS certificate verification via config `PR #312
• fix: handle special characters in passwords PR #307
• fix: explicit close/release allowing proper v3.10 cleanup PR #304
• fix: prevent failure when sys_interval is unset or None PR #303
• reduce noisy reconnect logging PR #310
• fix: publish coroutines in client documentation PR #302
• fix: exception names in client documentation PR #305
• fix: amqtt_sub reference page name PR #299
• remove obselete pytests, add additional coverage PR #309

New behavior

release for v0.11.4

Impact

no breaking changes, fixes for code and doc bugs

Checklist

1. Does your submission pass the existing tests?
2. Are there new tests that cover these additions/changes?
3. Have you linted your code locally before submission?