Description:

All the blueman scripts, e.g. blueman-sendto use `#!/usr/bin/env python`, which breaks dependencies if the user does not have the system python at first position in the path.

I think the scripts should use `#!/usr/bin/python` instead.

Additional info:
* package version: current version of the blueman package

Steps to reproduce:
install the blueman package and have another python, e.g. an anaconda in the path first. blueman crashes, for example because of `no module named dbus`.