v0.5.4

• Added: backported 'Scan Artist' feature from sarakha63/headphones
• Fixed: change file permissions of cache files according to settings (#2102)
• Fixed: hide Songkick if no regional events are available
• Fixed: only reschedule jobs if timeout changed (#2099)
• Fixed: limit dialog height (#2096)
• Improved: upgraded requests to 2.5.1
• Improved: upgraded unidecode to 0.04.17
• Improved: upgraded tzlocal to 1.1.2
• Improved: upgraded PyTZ to 2014.10
• Improved: upgraded mako to 1.0.1
• Improved: upgraded mutagen to 1.27
• Improved: upgraded beets to 1.3.10