Merge pull request #3 from lclementi/master

commands: integrate storage with star/stop virtual machine
List devices on vm
Size param was not used; added debug msgs in nas
swp files cleanup
Fixed bug with falling publisher; added catch-all to mrocess message; added debug all messages
Log messages, error messages fixed
Implemented reconnection on network fail;
If vm doesn't have target to disconnect, returns success on disconnect request
Error handling when attaching iscsi failed;
But in mapping iscsi to ip - to fix next
Removed all threads - resolve all sockets errors
Hopefully finally solved socket problems
Publish message in one line;
fixed symbols in xml
New messaging pattern, error handling
Properly handling node absence in set_zvol and tear_down
Remove not needed correlation_id from fe to nas
All errors are handled same way; only using async publish/consume and single connection
Service install fixed
Fixed error handling
Extended error messages
Moved sqlite3 db to /opt/rocks/var
Added common func to call commands (not finished);
IB network to mount drives;
added compute-0-3 to makefile