Massive rework towards improving error handling and processing
Merge remote-tracking branch 'remotes/upstream/FEAT_Last.fm_API_2.0' into 1.3.0RC_SEB_ADDONV3_HomeY

Conflicts:
	mediaportal/LastFMLibrary/LastFMLibrary.csproj
Update MPAR to 1.1.3
Refactoring and fixing of xml to object mappings
Merge remote-tracking branch 'remotes/upstream/FEAT_Last.fm_API_2.0' into 1.3.0RC_SEB_ADDONV3_HomeY