Set key location to a http file instead of key server
Release version 0.2.3
Improve template insert exec.

When the insert of a template failed at Elasticsearch the curl command still gave a '0' exit code back.
Now we make sure we grep for a 200/201 http code and check for that.
When it fails ( error code 500 for example ) we let the exec fail so we have feedback on the insert call.
Fix markup in README.md
Add hyperlinks to support channels
Merge pull request #77 from joschi/patch-1

Fix markup in README.md
Merge pull request #78 from joschi/patch-2

Add hyperlinks to support channels