0.3.0 - Second playtest

What's Changed

• D-pad leaning exerts a constant force by default rather that the spiked force of the previous playtest (general playtest feedback)
• Game Over when player leaves level bounds (requested by @Subcide)
• Crank-to-kickstart bike (requested by @strupf | lukas)
• Signpost which learns players how to turn around
• Add level: Hills (like the mobile game HillClimb)
• Add level: King of the Hill (which is a bad name, will be renamed to HalfPipe)
• Add bonus star to levels: Bonus achievement which usually require players to approach level from a different angle
• Camera movement is influenced by speed and driving direction
• Wilhelm screams when player falls outside level
• Settings menu
  • Enable tilt input for leaning (requested by @al May's Watching)
  • Lean back / forward force multiplier
  • Choose a d-pad button response "curve"
• Remember last played level
• Ready ? / Go! after loading a level. Level timer starts on first button press. Helps high-score chasers to not lose time after loading a level
• Indicator for rotation force (might be a debugging-thing)

Full Changelog: 0.2.0...0.3.0