Settings: Navigation bar Quick launch shortcuts (2 of 2)

I'm not sure, whether I merged this correctly. We don't have the "toolbars" category in 4.4 so I tried to create an extra category for navigation ring shortcuts (I'm not very familiar with android GUI programming). Let's just try out how it works and whether it compiles.

This allows up to 3 targets on the Navigation bar ring
or Home buttons with custom Quick launch shortcut actions.

Patchset 1 to 17 - Initial commits and edits
Patchset 18 - Update preference layout
            - Use AOSP terminology for the feature name
            - Group under new 'Navigation bar' category
            - Rename Navigationbar buttons configurator
Patchset 19 - Update commit message with x of y indicator

Change-Id: I91a7b86b7bfa79526b537e28b510ec078a58c956

Conflicts:
	res/values/dimens.xml
	res/values/strings.xml
	res/xml/system_settings.xml
	src/com/android/settings/cyanogenmod/SystemSettings.java

Conflicts:
	res/values/dimens.xml
	res/values/strings.xml
	res/xml/tool_bar_settings.xml
	src/com/android/settings/paranoid/Toolbar.java
Merge branch 'kitkat' of github.com:ModdedPA/android_packages_apps_Settings into kitkat

Conflicts:
	res/values/pa_strings.xml