Added ssl support

This system expects the ssl_certificates to be stored in the:

node[:jenkins][:http_proxy][:ssl][:cert_path], and
node[:jenkins][:http_proxy][:ssl][:key_path]

enable node[:jenkins][:http_proxy][:ssl][:http_redirect] to redirect
http: to https:
Merge branch 'master' into ssl-support-nginx

Conflicts:
	templates/default/nginx_jenkins.conf.erb
Fixed indentation
This isn't part of this pull request
Merge pull request #2 from RSO/ssl-support-nginx

Added ssl support