cleaning up matlab example
Merge pull request #24 from tingnan/develop

Cascade unit and other fix in C::E
Merge branch 'develop' of https://github.com/projectchrono/chrono into develop
Make the matlab unit into a library
small change to add ChApiMatlab to class definition
Add missing #endif at the end of header file.
Fix for Windows compilation (missing __declspec)
Merge branch 'develop' of https://github.com/projectchrono/chrono into develop

Conflicts:
	src/unit_MATLAB/ChMatlabEngine.h
Small fix for cosimulation hydraulics demo, Access the LCP_ITERATIVE enum directly from the ChSystem scope
add a benchmark for testing atomic add functions
Can now specify a std::string as an argument to the eval function, mainly for convenience
Only include OSAtomic if on osx
unit_JS is obsolete and moved into its own repository, see https://github.com/projectchrono/chrono-js