Changed the call to set_tunnel to work in python 2.6 or python 2.7 since its name changed between versions

Change-Id: I5550049435002b42c4fea06d41549a1e7254ac02
Add -l and --lh switches to swift 'list' command

Also updated man page and added an example in 'list'
command help message

Change-Id: Icf38de9bab6d387a9a1deed444a91f68b4389cfe
Merge "Changed the call to set_tunnel to work in python 2.6 or python 2.7 since its name changed between versions"
Merge "Add -l and --lh switches to swift 'list' command"