Moved from C to C++, made the whole thing compile
Moved FPT PDF computations into classes, added ExtArray class for interface
Modified MATLAB API to use the new C++ interface
Fixed constructor private variable ordering
Updated Python interface to use C++ classes
Renamed ddm_fpt_lib to src, and removed old C functions
Unified bound derivatives and cumulative sums
Moved mnorm into DMBase and adjusted interfaces
Moved dt to DMBase, made mnorm proper method, implemented pdfu/pdfl in DMBase
Extended DMBase::create to handle all possible (efficient) cases
Updated README.md's
Fixed some problems in README.md