Merge branch 'release/2.5.2' into develop
[CS] We don't care about line length
Move this otherwise redundant log message to debug
Do not quiesce until the second SIGTERM, as per documentation

Fixes #483
[BUGFIX] Consistent support for output options in all output methods

Fixes #481
[DOC] Params docs for #play

Fixes #447
Properly tag changelog
[BUGFIX] Avoid non-gc-able call-controllers/players

Circular references make trouble for GC. This also happens to fix #471 by accident. I don't expect the extra allocations to be a large performance burden.
[BUGFIX] Use engine timestamps for joined timestamps in `#dial`

Fixes #466
[UPDATE] Bump to 2.5.3
Merge branch 'release/2.5.3'