v0.7.0 - Skin Tab

Full Changelog: v0.6.2...v0.7.0

• Added a new skin tab
• Added an update available icon
• Add browser link to itch.io API keys page
• Changed some icons
• Added custom title bar
• Changed to a new installer
• Swapped to a ZIP file for portable version (Old portable system was having issues)
• Many more improvements