Change os.system calls to their appropriate native python function
Merge branch 'master' of https://github.com/alexzah/PGDB

Conflicts:
	pgdb/buildScripts/rshCheck.py
Add check for Yama Kernel patches
Fix hardcoded paths in MrNet setup script
Fix configuration script so that only two paths have to be edited
Correct path input
Merge pull request #2 from alexzah/master

Added and fixed several pgdb build scripts