m8: increase ui responsiveness

* lower touchslop, improves scroll response
* speed up the notification shade

Change-Id: I0262a5b359d4298a44bf8211baca13e01fa59535
Revert "m8: increase ui responsiveness"

This reverts commit a7869e740e00f1766e43b7d850649ae314b1b1a1.
m8: increase ui responsiveness

* lower touchslop, improves scroll response
* speed up the notification shade

Change-Id: I0262a5b359d4298a44bf8211baca13e01fa59535

Conflicts:
	overlay/frameworks/base/core/res/res/values/config.xml