v0.4.3

Features

• utility to run program with memory limit #8 (JacobLinCool)

Code Refactoring

• run executables with run_exe #8 (JacobLinCool)

Continuous Integration

• add C++ test #7 (JacobLinCool)

Chores

• simplify cpp test program #7 (JacobLinCool)
• bump to 0.4.3 (JacobLinCool)