Outline cluster that includes nearest vector
Remove redundant debug code
Enhance a visualization

Generated points are spread on surface nearest to watcher. Vector that
mouse points is projected on this surface as well. It makes choice of
point more accurate.
Read points from a file
Nothing much
Get leaf or value with function get[R]

Method get[R] uses selector Leaf => R to produce a value R from leaf.
Make a few method to bind Tree and Clusters
Arrange text with Clusters approach instead of trees.
Move "Use" the operator into CFG
Dump position vectors and deltas
Implement SmartFile the class to alleviate access to files
Add a command to choose between tree and clusters
Move SmartFile into separate file
Wipe out redundant  java IO model and use SmartFile instead.
Merge remote-tracking branch 'origin/SmartFile'

Conflicts:
	src/ru/wordmetrix/webcrawler/Storage.scala