Move proprietary-files.sh to extract-files.sh

Change-Id: I6a56cb8783351f820d28f542e771c89b15895cf1
i9300: blow headphones away

Change-Id: Icea9796f28d20c0226a704ac249e062962acec07
Merge "Move proprietary-files.sh to extract-files.sh" into cm-10.1
Merge branch 'cm-10.1' of git://github.com/CyanogenMod/android_device_samsung_i9300 into cm-10.1