Expose accessibility config on PhoneInterfaceManager.

+ Add methods to PhoneInterfaceManager, so that elsewhere in the
system applications can tell whether TTY mode or HAC are supported
by querying the TelephonyManager.
+ Updated some usages/exposure of configs in Telephony.
+ Some styling/capitalization fixes.

Bug: 19372734
Change-Id: I5e56d45156c5a89cf519e2d2dada5fc23ffdb639
diff --git a/src/com/android/phone/CallFeaturesSetting.java b/src/com/android/phone/CallFeaturesSetting.java
index 6d3b252..8b3f482 100644
--- a/src/com/android/phone/CallFeaturesSetting.java
+++ b/src/com/android/phone/CallFeaturesSetting.java
@@ -1163,7 +1163,7 @@
             mButtonAutoRetry = null;
         }
 
-        if (!getResources().getBoolean(R.bool.world_phone)) {
+        if (!PhoneGlobals.getInstance().phoneMgr.isWorldPhone()) {
             Preference cdmaOptions = prefSet.findPreference(BUTTON_CDMA_OPTIONS);
             prefSet.removePreference(cdmaOptions);