Add initial decoding of FF frames. Works with shareware intro. Looks nice with level over, but repeat needs a small fix. 

Enforced case-sensitivity for file names, accessible by defining UPPERCASE_FILENAMES or LOWERCASE_FILENAMES.

Moved guardian energy bars to the foreground. Changed the way post-level bonus levels and cutscenes are launched. Disabled bonus levels in multiplayer.

Changed animation handling so that it does not require a level to exist. Improved bonus level 3D projection.

Created look-up tables for trigonometric functions. Refactored sprite loading. Added sprites to bonus levels.

Enable sound directly after init, not only when playing music.

Updated scene playback with more animation attributes and types. Now playback ][ frames which is full screen frames. Two types of frames missing FF and RC frames. These are the only frame left that are used.

Store more than one background from animations. 
Store the related animation index for a scene page.
Updated constant naming for animations parts.

Add function def of sinf,cosf and tanf. Symbian is missing these functions in its math.h file, but should it be located some where else?

Added support for continue yes/no scene. added to extra controls yes_no (for extended config for ports), defaults to y, n keys.

Not all compilers allow pointer comparison with anything but the pointer type or NULL! Just wondering when the Level* level should be < 0? I think != NULL is the correct statement.Please correct if not!