v0.7

Updated to Python 3 (and re-named the old version to rsstorrent2_7.py), as I felt it is time that the main version should be running with version 3 instead of 2.7.

Initial implementation with python-daemon, where a user should be able to send signals to the running service, but not sure what state the implementation is in though.
I don't think it works very well, and it was a long time ago since I worked on it...