* 4.4:
Properly handle optional tag attributes for !tagged_iterator
[Mime] rename Headers::getAll() to all()
[Mailer] Fix phpdoc for variadic methods
[DI] Move non removing compiler passes to after removing passes
[Process] Deprecate Process::inheritEnvironmentVariables()
[HttpClient] fix debug output added to stderr at shutdown
* 4.3:
Properly handle optional tag attributes for !tagged_iterator
[Mime] rename Headers::getAll() to all()
[Mailer] Fix phpdoc for variadic methods
[HttpClient] fix debug output added to stderr at shutdown