Merge pull request #42 from kuu/master

[BugFix] The 'OK' button is displayed with a wrong animation.
[Category] Button

[Issue] Button position is wrong.

[File] monpla/battle_skill.swf

[Steps to reproduce]
1. Play back the file.
2. Press [Enter] to start the battle.

[Expected behavior]
After the battle, [OK] button is displayed at the bottom.

[Observed behavior]
Two [OK] buttons are displayed in different places.

[Cause]
There are really two BUTTONRECORDs inside the DefineButton.
However, only the first record has the matrix.

[Fix]
Made a change to apply the first record's matrix in case of multiple BUTTONRECORDs.