string "venv" is hard coded in uwsgi.ini file

[mfrasca]

the README.md suggests that the user create a virtual environment called venv. this choice is also hard coded in the uwsgi.ini file.
if I use mkvirtualenv, my virtual environments are centrally collected (not in the current directory) and I would not use the name venv.
using mkvirtualenv/workon, the location of the active virtual environment is stored in $VIRTUAL_ENV