69bc60b7b843
NOTE!:
robot/running/namespace.py has changes to support Process.py also Process.py file added from 2.8.1
libraries/String.py added from 2.8.1
libraries/BuiltIn.py added from 2.8.1
running/usererrorhandler.py added from 2.8.1 (to support BuiltIn)
errors.py added from 2.8.1 (to support BuiltIn)
