Added dot prodect method to Vector3d class
Added cross product and subtract method to Vector3d class
Added .gitignore to ignore eclipse files. Added Matrix3d class and a class for unit testing it.
Merge branch 'develop' of https://github.com/jlack1987/JavaMatrixLibrary into develop
Found bug in Vector3d cross product code and added failing test case. Have not fixed bug yet.
fixed edge case in cross product of Vector3d
fixed edge case in cross product of Vector3d
Added methods for zeroing a Matrix3d and setting a Matrix3d to identity.
added add and subtract methods to Matrix3d.
Added scale method to Matrix3d.
Added more add and subtract methods as well as another constructor for creating a Matrix3d from a double array
Added set method in Matrix3d for double array.
Added transpose method to Matrix3d.
Added toString method to Matrix3d.
Added getRow and getColumn methods to Matrix3d. Also added a few set methods to Vector3d.
Added method to Matrix3d for getting an element by specifying row/col.
Added set method for setting elements of Matrix3d by specifying row/col and value.
Added multiply methods to Matrix3d.
Added Matrix3d methods for checking if another matrix is equal to or equal to within an epsilon window another matrix.
Added some setRow and setColumn methods.