'np': Catch IndexError when a user has never played a track (Closes krf/supybot-lastfm#4)
Merge pull request #6 from GLolol/np-catch-empty-track

Catch error when a user has never played a track (Closes krf/supybot-lastfm#4)
Add Python 3 support

fix UnicodeDecodeError with 'lastfm recenttracks'

Fix __init__.py

test.py: fix import error on python 3
Move API key to config

test.py: fetch API Key from environment variables
Merge branch 'pr/python3+apikey' into devel