KeyRemap4MacBook 居然支持双击修饰键映射，牛 X！

把双击Shift映射未CAPSLOCK

<item>
<name>Double Shift To CAPS</name>
<appendix>Doubletap Shift To CAPS</appendix>
<identifier>private.codeplay.Double Shift</identifier>
<autogen>
--DoublePressModifier--
KeyCode::SHIFT_L,
KeyCode::SHIFT_L,
KeyCode::CAPSLOCK
</autogen>
</item>