FW : Allow user selection of Font Size

PS 1 :	Bring back the option.  Fixed the OCD issues on signal
	activity & battery text.

PS 2:  Rework the formulas for calculating icon widths on signal.
	some themes use a variety of different icon widths to
	achieve different effects.  This attempts to scale those
	images uniformly, rather than the 1-width fits all approach
	of earlier patchsets.  This also fixes the extra space that
	was showing up between mobile & wifi signals when alt signal
	is chosen.

Signed-off-by: Zaphod <mwilson@acesappraisal.com>

Change-Id: I65661821e9e41e4bd8569c1a56b583719b64c886

Conflicts:
	packages/SystemUI/res/layout/battery_cluster_view.xml
	packages/SystemUI/res/layout/signal_cluster_view.xml
	packages/SystemUI/res/layout/status_bar.xml
	packages/SystemUI/res/layout/status_bar_help.xml
	packages/SystemUI/res/layout/status_bar_icon.xml
	packages/SystemUI/src/com/android/systemui/statusbar/SignalClusterView.java
	packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarView.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/Clock.java
	packages/SystemUI/src/com/android/systemui/statusbar/policy/SbBatteryController.java
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java