Eliminated a trap...
Refactoring - Providing constant interface for the asynchronous data.

[Issue]
  Images, audio, and Shit-JIS texts are processed in ad-hoc manner.

[Solution]
  By introducing a new class, MediaLoader, these data are now decoded, loaded, and retrieved in constant manner.

[Affected parts]
  QuickSWF and SWFCrew.
Merge branch 'master' of github.com:Moncader/SWFCrew
fixed definedtext (still has an issue about descendant).
fixed definetext further (with better handling of ascent/descent).
Modified with correct initialization values for better performance.
Merge pull request #32 from kuu/master

Refactoring - Providing constant interface for the asynchronous data.