TODO

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# Copyright (c) 2012 Los Alamos National Security, LLC
# All rights reserved.
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# TODO for SKA
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# Urgent:

-  Add moveTo function from slope window
-  Add drag mouse control
-  Add instruction centering

-	Add type information to Strahler number computation in preparation of
	register support.

-  Add tree pruning for graphviz.

# Not so urgent:

-	Add register allocation heuristics.  This could be difficult...
	Need to add partial lowering functionality.

-	Finish search function.

-	Add metric heuristics (look for metrics from proposal).
	These should be added as library functions.

-	Add version information to library.

-	Add better controls to GUI.  In particular, mouse-over information
	about instruction meta-data would be nice (would need to add meta-
	data collection to driver).  Also need to figure out how to display
	metrics.  May need separate, non-modal window.

-	May want to modify xml format to group items.