Glances version 2.6.1

Enhancements and new features:

* Add a connector to Riemann (issue #822 by Greogo Nagy)

Bugs corrected:

* Browsing for servers which are in the [serverlist] is broken (issue #819)
* [WebUI] Glances will not get past loading screen (issue #815) opened 9 days ago
* Python error after upgrading from 2.5.1 to 2.6 bug (issue #813)