[VOTE] Release Apache Traffic Server 4.2.0 (RC0)

Hello All, I've prepared a release for v4.2.0 (RC0) which is the last stable release in the 4.x series. This will serve as our Long Term Support (LTS) version as detailed in our Release Management document: https://cwiki.apache.org/confluence/display/TS/Release+Management Changes since 4.1.0: h

Re: git commit: TS-2353: add ability to load ssl certs that are owned by root and only read only by the user

> diff --git a/lib/ts/ink_cap.cc b/lib/ts/ink_cap.cc > index e51b730..7091144 100644 > --- a/lib/ts/ink_cap.cc > +++ b/lib/ts/ink_cap.cc > @@ -24,12 +24,17 @@ > # include "ink_config.h" > # include "Diags.h" > # include "ink_cap.h" > +# include "ink_thread.h" > > # if TS_USE_POSIX_CAP > #