Merge branch 'dev'
Changelist
changed EmailSink to accept a comma-and-or-semicolon separated list of recipients
Remove SSL cert pinning

Remove cert pinning.
Added EditorBrowsable attributes to Obsolete methods
added configuration overload that makes it more explicit that multiple email recipients can be specified and added appropriate comment to email connection info
Merge pull request #327 from khellang/dev

Added EditorBrowsable attributes to Obsolete methods
Merge branch 'fix-logentries-ssl' of https://github.com/StephenHynes7/serilog into StephenHynes7-fix-logentries-ssl
Merge branch 'StephenHynes7-fix-logentries-ssl' into dev
Merge branch 'master' of https://github.com/mookid8000/serilog into mookid8000-master
Fixes #234 - ElasticsearchSink needs to calculate index names for Logstash using UTC
Fixes #323 - include PDBs in ES sink
Fixes #321 - `renderedMessage` vs. `message` property name regression