Update script.lastfmplaylistgeneratorPM/pm.py

when the addon's settings are never saved (i.e. on a new install), the boolean values contain 0 (int), whereas after saving, they contain either "true" or "false" (strings). the changed if-clauses workaround this problem without changing the defaults.
Update script.lastfmplaylistgeneratorPM/pm.py

make sure it works on systems that might use 0/1 instead of "true"/"false" for boolean setting variables
bump version, change dependencies

- script.module.psylite seems to be built-in
- bump version to 1.1.2
Update script.lastfmplaylistgeneratorPM/changelog.txt
move plugin to Music section

per discussion on forums.xbmc.org
Update script.lastfmplaylistgeneratorPM/changelog.txt
Merge pull request #6 from heldchen/master

fix plugin when settings are missing (i.e. after fresh install)