Fixed race condition, added SSL/TLS, version 2.1.2
Updated to v2.1.3
fixing common exception being thrown, fixing formatting

There was an exception being thrown on almost all log events because the
logEvent.Exception can be null from Nlog.  To help with performance, a
simple test for null works.  the try/catch may not even be needed any
longer.

added some additional debug messages to help track down firewall issues.
Merge pull request #9 from eduncan911/master

Fixing common exception being thrown, fixing formatting
Updated to version 2.1.4
Merge branch 'master' of https://github.com/logentries/le_nlog