Merge pull request #38 from matysek/develop

Antivirus, foreign characters in paths on Win and updated license header in bootloader code.
Issue #667: Fix detection of Django admin url callbacks
Merge pull request #40 from matysek/develop

Integration with distutils/setuptools
Merge pull request #41 from gutard/issue667

Issue #667: Fix detection of Django admin url callbacks
Fix: Regression on OSX where the absolute path to python library was not used.
Clean: Recompile OSX bootloaders.