Phone: Add home dial feature (as seen on HTC devices)

Patch Set 1:    * initial release

Patch Set 2:    * fix coding style
                * move home dial values in home_dial.xml
                * remove unneeded imports
                * code cleanup

Patch Set 3-5:  * some cleanup
                * rename some strings

Change-Id: Ifa7cba7f4b83040a218400d4722b067d13bf7615

Conflicts:
	res/values/strings.xml
	src/com/android/phone/CallFeaturesSetting.java
	src/com/android/phone/PhoneUtils.java
Revert "Phone: Add home dial feature (as seen on HTC devices)"

This reverts commit 5b8aec289f6c6f8d8f2bc2e93d20dc82ff822c33.