rpymat 0.1.9

• Updated Python version registry for MATLAB
• conda environment forces to install pip
• Added libomp fix: users will no longer encounter the error about double-initializing OpenMP by setting KMP_DUPLICATE_LIB_OK to TRUE as a compromise. However, manually run fix_omp_conflict is recommended.
• Added fix_omp_conflict to creates symbolic link on MacOS and replace the conda built-in version: setting to run manually. This fix requires users to run fix_omp_conflict whenever R is updated, and the OpenMP ABI versions must coincide between R's and conda.