Two Vault client settings were not being properly used when constructing
a Vault client.
The `TLS Skip Verify` setting was only being set if a `CA Cert` was also
configured. This fix sets the `TLS Skip Verify` when configured
regardless of other settings. Closes#3961.
The `TLS Server Name` setting was never being set. Bad programmers. This
fix now sets it on the Vault client if the Vault Credential Store has
been configured to use a value for this setting. Closes#3962.
Michael Gaffney
d638378d57