- Added load/save chart - Fixed exception from trying to unmark erased edges - Centered strategy/rule buttons - Turning on "step" now stops any animation in progress
- Added load/save chart
- Fixed exception from trying to unmark erased edges
- Centered strategy/rule buttons
- Turning on "step" now stops any animation in progress


svn/trunk@792

nltk/nltk,nltk/nltk,nltk/nltk