Deprecated old methods and added new methods to interface.
Stubbed out new methods.
Current work on #172.
Updated interface.
Added implementations to new functions.
Marked more methods as deprecated.
Stubbed out all new methods.
Tested SparseMatrix.
Implemented new methods for Matrix.
Added new conversion classes to go from Row/Column VectorFunction to
MatrixFunction.
Fixed javadoc typo.
Fixed spacing.
Code review changes for #172.
Indentation change.
Merge pull request #233 from DWiechert/172-VectorFunction

172 vector function