ThemeUtils: Retain the original package name in themed UI context

In order for themes to reflect on system elements, we're changing
their context, including the package name.

This breaks anything that tries to identify system elements,
most notably any users of the uiautomator. Trying to do
'UiSelector().packageName("android")' to find, for example,
a force-close dialog will fail.

Fixes com.android.cts.uiautomatortest.CtsUiAutomatorTest#testUiWatcher

Change-Id: Ic05c3024b20ac3772ed5597846fbfa4a184ebb0d
Merge "ThemeUtils: Retain the original package name in themed UI context" into cm-10.1
Revert behavior of DateUtils.formatElapsedTime

Change Ib3c1e1aad05827df646aa18645cce19dffb7551f fixes the inability
to display more that 2-digit hour values, but also changes the behavior
of <10 minutes display by zero-padding the minutes. This makes
the Chronometer widget look different, and breaks Holo CTS.

Fix it so that for values under 600 seconds, the minutes don't
get padded

Change-Id: I34eb7f22e728c55bf3313ed1987ac32969cd5ed0
Merge remote-tracking branch 'upstream/cm-10.1' into cm-10.1