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Merge remote-tracking branch 'origin/XuWen' into XuWen

Conflicts:
	bin/classes/com/xuwen/ball/MainActivity.class
	src/com/xuwen/ball/MainActivity.java
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Delete Ball.apk
Delete classes.dex
Revert "Delete classes.dex"

This reverts commit 52896643c9a494ebab2a03f5a5a0fe435d98ff84.
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董启凡