tls: rework for efficiency and linear style
tls: assemble tls_opts in register, add 10s timer
tls: load tls.ini (adds support for setting 4 TLS options)
tls: added no_tls_hosts option
tls: remove secureProtocol opt and pass TLS options

(requestCert,rejectUnauthorized) to tls.createSecurePair when in "server" context
tls: docs cleanup
tls: set timer to plugin.timeout - 1 (was 10s)
Merge pull request #597 from msimerson/tls

TLS: added register(), timeout, load tls.ini and *.pem files with cb