Description of problem:
When user selects multiple VMs and starts import which fails, the messages in dialogue don't contain VMs name - so user don't know, which machines are not being imported.

Version-Release number of selected component (if applicable):
ic153.3

How reproducible:
Always

Steps to Reproduce:
1. Have VM on export domain which can't be imported
2. Import that VM
  
Actual results:
"Cannot import VM. The selected disk configuration is not supported"
"Template's Image is locked" <- just noticed that there is missing dot at the end of the sentence

Expected results:
e.g. "Cannot import VM <vmName> ... "