Change 4507

Barrie Slaymaker
Request Review
- RevML:
    - added <action>, removed <delete>, <placeholder> and <move>
    - added <from_id> for clones (and eventually merge actions)
    - Simplified DTD (can't branch DTD based on which action
      any more)
- VCP::Source::cvs, VCP::Filter::changesets and VCP::Dest::p4
  support from_id in <action>clone</action> records
- VCP::Dest::perl_data added
- VCP::Rev::action() "branch" added, no more undefined action
  strings
- "placeholder" action removed
14 edited 2 added 0 deleted
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