updated C++ SIMexport examples
fixed the build problem in ACADO MATLAB interface
update external Pendulum model
updated existing SIMexport ACADO from matlab examples
updated ACADO from MATLAB code generation simulation examples + added a quadcopter example to illustrate 3-stage format
added automatic creation of export folders in SIMexport
fixed issue with full_rhs in case of 3-stage model format
Merge branch 'master' of github.com:mvukov/acado
only declare user accessible functions in acado header file
small update of SIMexport file names
removed one warning related to unused variable
reverted the changes in SIMexport partly
Fixed documentation generation of exported code

- Minor formatting in ExportFunction, declaration part
- .... and in the export of ACADO symbolics