[HTTPS-E Rulesets] esper.net rules

[Tuomo Kämäräinen]

<ruleset name="EsperNet webchat">
  <target host="webchat.esper.net" />
  <rule from="^http://webchat\.esper\.net/"; to="https://webchat.esper.net/"/>
</ruleset>
<ruleset name="EsperNet">
  <target host="esper.net" />
  <target host="www.esper.net" />
  <rule from="^http://(www\.)?esper\.net/" to="https://esper.net/"/>
</ruleset>