Beta 4 Release!

A whole host of graphical changes in this release. Bugfixes and movement adjustments have been made as well.

• Added tilesets to most levels
• Added directional arrows to indicate where to go
• Updated character sprite to better reflect collision
• Adjusted movement parameters to allow for greater air influence
• Added parallax background
• Implemented pause menu (ESC no longer kicks back to the main menu instantly!)
• Disabled the quit button in web version
• Fixed a bug where the "Next Level" button after finishing a level would take you to the wrong level or not work
• Added volume sliders to the Settings menu