intial, unfinished work on the permutation operator
Changed ceiling() to max(1,round()) in BstarCB per Dimitris's suggestion
Merge branch 'master' of https://github.com/JeffreyRacine/R-Package-np
interim commit of work on permutation operator
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changed the way data is returned back to R in preparation for further tree integration
first untested commit of 'permutation' operator changes
this is a partially broken test-build
added 'permuation' argument to npksum
bandwidth.divide now interacts correctly with permutations
support for computing the score (h-derivative related quantities)
further npksum optimizations (skipping over kernel evaluations once we know the product will be zero)
fixed inconsistencies with bandwidth.divide option + various operators
experimental support for categorical score kernels
Merge branch 'master' into npRmpi

Conflicts:
	R/util.R