Set emulate_model_alias if kernel supports it

This is an optional feature of the kernel target, but I think we always
want to enable it.

Signed-off-by: Andy Grover <agrover@redhat.com>
Small misc. clean-up/fixes

Signed-off-by: Tony Asleson <tasleson@redhat.com>
Signed-off-by: Andy Grover <agrover@redhat.com>
Add support for multiple pools and pool types

To support file based targets we now support more than
1 block pool and file system pool.  Pools can either
be block or fs at this point.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
Signed-off-by: Andy Grover <agrover@redhat.com>
Initial code for file system functionality.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
Signed-off-by: Andy Grover <agrover@redhat.com>
pep8 clean-up

Signed-off-by: Tony Asleson <tasleson@redhat.com>
Signed-off-by: Andy Grover <agrover@redhat.com>