Updated install and made references in the code independant of install path

By using this patch it is possible to:
install tellprox using setup.py, 
removing the source code
start tellprox by using python -m tellprox (only requiring configspec.ini in the same directory).

The source code has been made independant of install path by using __file__ in python.
Static files like html and js now uses the directory retrieved from __file__

Best Regards,
engelvinter