Syslog TCP support

[EmielSchmeink]

Write your suggestion here.
I was wondering if there is any chance you would consider Syslog TCP support for tls transfer to papertrail? Thanks.

[Seldaek]

IMO it's much better to log to local syslog or a random text file and then configure the rsyslog to sync your syslog/logfile to papertrail, that way you don't slow down the app with TCP ACKs whenever it logs. Rsyslog can do TLS.

[arnegroskurth]

A reason to support this might be to allow incremental development/prototyping with monolog - the argument about the performance impact is very valid but that is something that, depending on the project, is (initially) much less important then reliable logging and can be iterated upon when necessary.

Would be great to have TCP(+TLS) support in monolog!

Has also been requested in #627