Added optional marker/limit to list command

The trove client did not allow you to pass in a marker or limit
for list instances.  These arguments are now allowed, and the
resulting list filtered accordingly.  Both arguments are optional.

Change-Id: I7cb697d57d11f72c0349fbe50c48d8b33593721b
Closes-Bug: #1294950
Merge "Added optional marker/limit to list command"