Documentation for attributes.go

http://go-lint.appspot.com/github.com/Sentimentron/golearn/base
attributes.go: More documentation
attributes.go: golint's still complaining
attributes.go: golint's *still* complaining
csv.go: documentation
instances.go: documentation
filters: Extra helper method
Merge branch 'master' of github.com:Sentimentron/golearn
Think that addresses all golint's comments on csv.go
Don't need this yet
base: golint's issues
Final criticism
binning.go: documentation
chimerge.go: addressing some of go lint's criticisms
Merge branch 'master' into trees

Conflicts:
	base/instances.go
Correction
Random generates the decision tree
instacnces.go: removed debugging
metrics
DecisionTree Predict() method