DESCRIPTION
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This module adds 'diff' functionality to the 'Revisions' tab, allowing
users to nicely view all the changes between any two revisions of a node.

INSTALL
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Install as usual for Drupal modules

TECHNICAL
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- This version compares the raw data, not the filtered output, making
it easier to see changes to HTML entities, etc.
- The diff engine itself is a GPL'ed php diff engine from phpwiki.

TODO
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consider using in core.