split for vectors, not yet for matrices
split now splits on a seq
hsplit for seq also
simplified
created unsafeValueAt which is faster version of matrix value at
update/unsafeUpdate methods
Merge branch 'perf' into split
Added benchmarks measuring matrix traversal for row/col order or col/row order.
added benchmark for value mapping
created hsplit for matrix
vsplit
numpy like split where you specify the axis
Merge pull request #192 from stucchio/split

Split method
Merge remote-tracking branch 'remotes/scalanlp/master' into DVComplexToArray