message: Update release number.
diff: # otherwise, the hard-coded values will go in to the config.
  #------------------------------------------------------------------------------
  set(AXOM_VERSION_MAJOR 0)
  -set(AXOM_VERSION_MINOR 5)
  +set(AXOM_VERSION_MINOR 6)
  set(AXOM_VERSION_PATCH 0)
  string(CONCAT AXOM_VERSION_FULL
  "v${AXOM_VERSION_MAJOR}"
  