fetchart: Automatically disable google backend if no API key is set
fetchart: Automatically disable google backend if no API key is set

mried/beets,ibmibmibm/beets,swt30/beets,lengtche/beets,pkess/beets,pkess/beets,swt30/beets,diego-plan9/beets,jcoady9/beets,xsteadfastx/beets,sampsyo/beets,jackwilsdon/beets,Freso/beets,pkess/beets,madmouser1/beets,Freso/beets,SusannaMaria/beets,LordSputnik/beets,artemutin/beets,sampsyo/beets,MyTunesFreeMusic/privacy-policy,Kraymer/beets,xsteadfastx/beets,ibmibmibm/beets,Kraymer/beets,parapente/beets,shamangeorge/beets,Freso/beets,artemutin/beets,diego-plan9/beets,jackwilsdon/beets,madmouser1/beets,sampsyo/beets,Freso/beets,mosesfistos1/beetbox,swt30/beets,MyTunesFreeMusic/privacy-policy,xsteadfastx/beets,mried/beets,mosesfistos1/beetbox,MyTunesFreeMusic/privacy-policy,beetbox/beets,SusannaMaria/beets,lengtche/beets,artemutin/beets,diego-plan9/beets,pkess/beets,mried/beets,jcoady9/beets,sampsyo/beets,Kraymer/beets,LordSputnik/beets,shamangeorge/beets,artemutin/beets,lengtche/beets,SusannaMaria/beets,parapente/beets,parapente/beets,beetbox/beets,jcoady9/beets,xsteadfastx/beets,parapente/beets,LordSputnik/beets,shamangeorge/beets,ibmibmibm/beets,ibmibmibm/beets,madmouser1/beets,beetbox/beets,LordSputnik/beets,mried/beets,madmouser1/beets,beetbox/beets,jcoady9/beets,diego-plan9/beets,jackwilsdon/beets,mosesfistos1/beetbox,shamangeorge/beets,swt30/beets,jackwilsdon/beets,MyTunesFreeMusic/privacy-policy,lengtche/beets,Kraymer/beets,SusannaMaria/beets,mosesfistos1/beetbox