v0.0997

      [BUG FIXES]

      - Fixed behavior of the --force flag on the new "update" command.
      It now applies to all packages that might be updated, not just the
      targets list on the command line.

      [ENHANCEMENTS]

      - When generating the title for the log message, only the targets
      at the top of the dependency graph are listed, and only if they
      (or one of their prerequisites) were actually affected by the
      operation.  In effect, redundant and prereq targets are therefore
      excluded from the message. This attempts to fix GH #86. Thanks @akarelas.