Letsencrypt Siteextension Versions Save

Important fix for issue #25 - otherwise the web jobs won't successfully renew the certificates.

Removes the null reference exeception #19 The error is minor as the webjob only fails if you are not using the letsencrypt:Hostnames app setting. And in that case the web job, should do nothing.

A bug was introduced in 0.4.2 that caused the web.config file to not be written to the challenge directory .well-known/acme-challenge/ which made the challenge process fail on new installs.

This release enables support for 64 bit enviroment (note you have to install the 64 bit specific site extension). It also enables support for requesting certificates for multiple domain names (SNI/Alternate names)

• Ensures that Web App settings are saved, before being able to request certificates
• Handle certificate requests for environments where web app and app service plan are in separate resource groups
• Updated ARM templates
• (Optional) Web App setting letsencrypt:WebRootPath can be used to place challenge file outside site\wwwroot