[Merge]Please cherry pick below commits from 4.3 to 4.3-forward

[Frank Zhang]

commit 20efa0c8a6b83c6590eab48fefac81b72b2082a9
Author: Frank.Zhang <frank.zh...@citrix.com>
Date:   Mon Feb 24 13:30:24 2014 -0800

    CLOUDSTACK-6155
    Baremetal agent RPM missing in spec file

commit c1806bd873fe661756aeee94b25339c25f9724a5
Author: Frank.Zhang <frank.zh...@citrix.com>
Date:   Fri Feb 21 13:22:55 2014 -0800

    CLOUDSTACK-6155
    Baremetal agent RPM missing in spec file




commit 3787579d2910f4882c4b2763d610293fcbc03e61
Author: Frank.Zhang <frank.zh...@citrix.com>
Date:   Thu Feb 20 14:23:41 2014 -0800

    [upgrade] Baremetal 4.2.0 -> 4.3. After upgrade, destroy baremetal instance 
fail
    
    [upgrade] Baremetal 4.2.0 -> 4.3. After upgrade, unable to start baremetal 
instance
    
    [upgrade] Baremetal 4.2.0 -> 4.3. After upgrade, baremetal host remain in 
Disconnected state. But instance associated with baremetal host is running.
   
    [upgrade] Baremetal 4.2.0 -> 4.3. After upgrade, unable to reboot baremetal 
instance
    [upgrade] Baremetal 4.2.0 -> 4.3. After upgrade, unable to stop baremetal 
instance