LÖVE 0.10.0 fix

Fixed problems introduced by LÖVE 0.10.0

Version 1.0 relicensed

• Assets license (minus music) changed to CC BY-SA 4.0 instead.

Version 1.0

• Minor code cleanup from RC2
• Added 9 more maps

1.0 release candidate 2

• Reintroduced mouse controls
• Made game pause and not grab mouse cursor when losing focus

1.0 release candidate 1

v1.0-rc1

Made level selection save last choice.