Fixup URL generation under windows when retreiving files from guest

- Split from talesins/veewee pull request, commit: d76dac4ab6a8663, associated with issue #578 (GitHub) on jedi4ever/veewee
Fixed Debian netboot disc location
Modified CentOS 5.8 netboot to use vault for stage2 image
Merge pull request #593 from eshamow/fix_centos58_netinstall

Modified CentOS 5.8 netboot to use vault for stage2 image
Merge pull request #594 from eshamow/fix_debian606_template

Fixed Debian netboot disc location
Merge branch 'windows-url-fix' into stable
Merge branch 'master' into stable