Stack problem solved in C++11
added overflow test for Node.js solution to Stack-Machine; currently fails
Stack-Machine problem solved in C++11
Merge pull request #62 from tclamb/js-stack-machine

added overflow test for Node.js solution to Stack-Machine, currently fails
Merge pull request #61 from tclamb/c++11-stack-machine

Stack-Machine problem solved in C++11
Merge pull request #60 from tclamb/c++11-stack

Stack problem solved in C++11