New Classes
-----------
  1) I'd really like a generic SNMP object that could handle storing
     data from any MIB.

Class Changes
-------------
  1) we need support for RTTs to each hop in ArtsIpPathData.  This really
     means a change to ArtsIpPathEntry, and probably a version number 
     change for the ArtsIpPath object.

Application Changes
-------------------
Jason Lixfeld <jlixfeld@idirect.com> asked for the ability to specify
more than one source or destination network when using 'artsnets'.
