ssl_state: Use "," instead of "|" as the SSL state separator to be compatible with Snort - v1

Snort uses "," to separate state names, not "|".  I've kept "|" as an option in case anyone is using it.  ET is not using it so it might be best just to use ",".

- PR build: https://buildbot.openinfosecfoundation.org/builders/jasonish/builds/9
- PR pcaps: https://buildbot.openinfosecfoundation.org/builders/jasonish-pcap/builds/9