Merge pull request #30 from Bonder-MJ/master

SNP lists necessary for PCopt, Changed to parallelcolt, new double matrix
DoubleMatrixDataset extends DoubleMatrix2D allowing it to be used by lots of COLT functions
Merge pull request #31 from PatrickDeelen/master

DoubleMatrixDataset extends DoubleMatrix2D allowing it to be used by lots of COLT functions
Fixed transpose issues. No works same as other colt matrix using viewDice. This will create an view (not a copy) of the orignal dataset that refects modifications of the original. This is the same behaivor of viewDice in other colt matrix implementations
removed old get row count since this is already present when extending double matrix from colt
Please check these two functions: setNrRows and setNrCols. I think they are invalid
Merge pull request #32 from PatrickDeelen/master

Fixed some issues with double matrix