- library/nx/nx.tcl: Pulling out method contracts (pre- and
  postconditions) from NX for the time being. Corresponding tests have
  been commented out or, if applicable, turned into XOTcl2-specific
  tests.
Working on Object.man, in particular forward
Adding some todos
Continue working on forward doc, adding some tests
forwarders:
- RFE "provide %method" as keyword like %proc"
  was already implemented. Dropping %proc would break XOTcl2
  compatibility.
- adding a test case
forwarders:
- use for output of forward ... -verbose NsfLog(...NSF_LOG_NOTICE...)
  instead of fprintf() to make it redirect-able
- move "checkalways for forwarders and aliases" to RFEs and comment it
- use in forwarders "-frame object" instead of "-objframe" in nx
  for consistency with other calls (e.g. dispatch). Other values for
  "-frame" are not allowed. (btw, XOTcl has "-objscope")