Added partial multiplication between some groups of the matrix and themselves
Added partial multiplication between some groups of the matrix and themselves
Changed the implementation of partial product to use the newly created BlockMatrix
renamed * to dotProd and changed the types a bit
Merge pull request #569 from tomtau/feature/optimizedmatrix

Feature/optimizedmatrix - oneR, J, test cases, SizeHint in BigInt, negation optimization
Merge pull request #567 from vitalyg/develop

Partial Matrix Multiplication
Merge branch 'develop' of github.com:twitter/scalding into feature/optimizedmatrix