Fixes issue #1264 (#1274)
Fixes issue #1264 (#1274)

Fixes https://github.com/sugarlabs/musicblocks/issues/1264

Implemented the ability to set non-special tags as default; 'music' tag enabled. (@pikurasa sorry this is so late - I haven't had any coding time over the past few days)
eohomegrownapps/musicblocks,walterbender/musicblocks,Hrishi1999/musicblocks,Hrishi1999/musicblocks,Hrishi1999/musicblocks,walterbender/musicblocks,eohomegrownapps/musicblocks,eohomegrownapps/musicblocks,walterbender/musicblocks