support-cell-aliases-20011009

support-cell-aliases-20011009

This patch adds support for "cell aliases": a cell alias allows a
  single cell to be known by multiple names (one of them the primary).
  This is useful in conjunction with AFSDB support, where you want all
  the possible names for the same cell to share the same tokens, etc.

  For instance, if the local resolver has "mit.edu" in its search
  domain, an AFSDB lookup on cell "athena" will cause the primary
  cell "athena.mit.edu" to be created, and "athena" made an alias
  for it.