generic nightmare
Generics working
Merge remote-tracking branch 'remotes/scalanlp/master' into padLeftRight
finished scan/fold/reduceLeft-Right with tests
David suggested changes, use Vector.valuesIterator where possible instead of .toArray to reduce copying
.
Merge branch 'Vector_fold/scan/reduce' of github.com:ktakagaki/breeze into ktakagaki-Vector_fold/scan/reduce

Conflicts:
	src/main/scala/breeze/linalg/DenseVector.scala