vpoller.c: Fix compiler warning
Document how to perform agent-less process monitoring with vPoller and Zabbix
zabbix-vsphere-import: Fix for issue #100
Commit an example Zabbix template for agent-less process monitoring in VMs
Disable discovery of vSphere sessions by default
vPoller release 0.3.5
vPoller now depends on vConnector v0.3.1
vPoller does not require tabulate dependency
The vPoller Zabbix helper now supports 'datacenter.alarm.get' method
Issue #94: Update zabbix-vsphere-import to work with Zabbix version 2.4.x as well

* Switch to pyzabbix module from now on as this module is better
  maintained than zabbix_api
* The zabbix-vsphere-import tool now works with all versions supported by
  pyzabbix, which at this moment is Zabbix versions from 1.8.x to 2.4.x
Add a vpoller badge
Add PyPI badges
VPollerClient instances return a json.dumps() result like the Worker
does in case of failures
We should print an error message when a vPoller task fails
Issue #108: Remove extra hosts from Zabbix which are no longer found in
the vSphere host from which import objects
Issue #109: Fix getting Zabbix Proxy host ID
Issue #108: Fix removal of extra datastores found in Zabbix, but not
present in vSphere
zabbix-vsphere-import: Set the discovered vSphere data as attributes of
the Zabbix instance