Driver xenlib rhel6 support - part 1

Hi,

this is a set of small updates into the XEN lib to support this driver for RHEL6 / CentOS 6. These small changes are  backward compatible so they are working as well for RHEL5.

This is first part. It contain very important fix. There were a bug in an impementation of getStatus() method which caused the unable of stop vps and few other issues (unable to start, etc).

Please be aware: RHEL6 is not full supported yet. This is a first part of changes.