Settings: fix NPE

if the user resumes InputMethodAndLanguage settings and
the user dictonary preference was already removed before,
the user will run into a NPE.

check it to fix it.

Change-Id: I1eac844720768bb668e26f0a572c7876b7b0bcee
Fix elapsed time formatting.

We should extend DateUtils to provide this kind of elapsed time
formatting via icu4c, but for now let's at least fix our
arithmetic.

Bug: https://code.google.com/p/android/issues/detail?id=61479
Change-Id: I6c087dbb9fdbff0a21d9243d239126fee180454c
Fix null pointer exceptions in NetworkPolicyEditor

This upload fixes a null pointer exception issue.
After this fix the modified methods return
their corresponding default values instead of null.

Change-Id: Idb94f8b808b8dd18be5e3fc92cc5560ce0f81c4f
Bluetooth: Don't set a null alias before unpairing

* This causes the unpair action to throw a null pointer exception and
  bring down the Settings app. Don't do this.

Change-Id: I0c60437f5ea934385a037a464743e24c9d341aca
Fix the icon size in app lists.

E.g. the "Select app" dialog in the profile group configuration uses
this layout to inflate the list dialog. However app icons can have
non-standard sizes so we enforce a consistent width and height.

Change-Id: I71731a9bb3548c699cc2e0e600a5ff371ceacbc3
settings: fix exception in BatterySipper.getQuickNameIconForUid

placeholder

Change-Id: I4da880532788de78debffe594faf08eee0389014
Fix FC when trying to adjust radio band via *#*#4636#*#* dialer code.

Fixes:

1. Add additional strings to BAND_NAMES array for additional bands from ril.h
2. Fix logic when adding band strings to selection list (for loop ends before entire array is read)

Change-Id: I5ff883a469f757a30c71d7d72c8f6ace19ce7a4d
Signed-off-by: Andrew Xie <andrew.w.xie@gmail.com>
(cherry picked from commit 4845045bb2dfd9b1a67f9f0c62bb44bfc5152284)