Merge pull request #57 from kuu/master

[Issue] Characters are displayed in the place where numbers should be.
[Issue]
  Wrong text is displayed in the place where player's name should be.

[Cause]
  The player's name is stored in the EditText's variable in advance by ActionScript.
  However, the name of the variable has the slash and colon syntax ('/:num5'.)
  In this case, the variable is not associated with the direct parent of the text, but with the root movie clip.

[Fix]
  Changed to call SpriteActor.getVariable() on the root sprite when the variable name includes colon (':').