• add check for device mapper path in path filter (#518,@akhilerm)
• fix a bug causing blockdevice resources not to be created for all the disks if one of the disk goes bad (#517,@akhilerm)
• fix a bug in parsing /proc/cmdline where the root partition identifier is not present (#516,@akhilerm)
• add checks for validity of partition and dm device resources created (#519,@akhilerm)