Release Notes for upd v4_4_3

This file summarizes changes in upd since the last major release, upd v4_4.

upd:
   * warning about using -f instead of -H with lists of flavors
   * undeclared dependent product fixes
   * upd udpate takes "-a" to update all table files, etc.
   * updusr.pm no longer required in $UPD_USERCODE_DIR
   * cross-database dependencies on distribution servers are now found

upp:
   * missing data directory yeilds an error
   * mail messages now mention the subscription file used
   * new product notification works
   * better error checking of subscription files