No Input Argument Constructor Requirement

[jaeandersson]

I wasn't aware of the "No Input Argument Constructor Requirement" in MATLAB, but it could be pretty useful in the context of SWIG, cf.

http://es.mathworks.com/help/matlab/matlab_oop/class-constructor-methods.html#btn2kiy

This would motivate getting rid of the current constructor which takes a pointer and simply rely on the default constructor.

[jaeandersson]

Closing wontfix for now. Reopen if needed.

[jaeandersson]

I'm reopening this issue for reasons of speed, debuggability, cleanness of code.