More TLS documentation

Add a quickstart section.
Add certificate generation section
Add ExampleSSLConfig.md
Add more to highlights section.
Add more to migration to 2.3
Add a section on testing SSL.
Add generation scripts so we can reference them via includes.
Apply url.withQueryParams fix from #1861
Merge pull request #2745 from wsargent/fix-oauth-queryparams

Apply url.withQueryParams fix from #1861
Add links to Home.md, add reference to cert gen in ConfiguringHttps.md
Merge remote-tracking branch 'wsargent/more-tls-docs'
Removed dependency on scala-io
Merge pull request #2746 from jroper/remove-scala-io

Removed dependency on scala-io
Changes required in support of sbt-web 1.0.0-RC1
Doco improvements
0.13.5-RC1 upgrade