Initial commit. Basic source and ant file that builds an R project.
R package now installs correctly
Regression code for R and prediction.
Java ExtraTrees object updated to store trees.
refactored: score calculation now a separate method
improved regression testing
Revert "refactored: score calculation now a separate method"

This reverts commit a2f485c00743800573ab5eeea976b9707d9f59cc.
zero=1e-6
installation guide
example for using extraTrees
small fixes, javadoc
ExtraTrees for classification. Added simple tests.
javadoc clarifications
Build now makes java 1.6.
Added documentation.
Basic code for classification ExtraTrees (using Gini index)
large scale testing fixed to use new testing samples
Documentation update
Added numRandomCuts, which allows ExtraTrees to use more than one random
cut for each dimension (currently only regression).
large scale (N=5000) test updated to use numRandomCuts
Vignette now contains a useful documentation for basic usage. Fixed
documentation for extraTrees.Rd