[MAT-310] attempt adding norm2 graph node to existing algebra
[MAT-310] change test as we now have this capability.
[MAT-310] add multiply node
[MAT-310] Adjust tests and impl to suit
[MAT-310] patch failing test, incorrect exception
[MAT-351] Use corrected og-maths version.
[MAT-310] Add in OG native SVD computation
[MAT-310] swap Commons SVD for OG-Maths impl.
[MAT-310] swap Colt SVD for OG-Maths impl.
[MAT-310] modify tests with rank deficient data to match OG-Maths.
[MAT-310] removing project codenames in line with MAT-318
[MAT-310] respond to PR #13 review, _rank should be final.
[MAT-310] respond to PR #13 review, as<primitive>() methods should return copies.
Merge pull request #13 from OpenGamma/MAT-310

Mat-310. Integrate OG-Maths native code into OG-Analytics.