Signal strength: add more checks to signal strength,

so it doesn't fall under the range of poor signal and automatically
assumes a gsm signal, actually checks if all values are true and not
valid then pass it on to lte or gsm. This fixes cases when gsm signal
is not valid and lte is active. When lte is active and shows a really
weak and gsm signal is not avalible due some broken vendor ril or
just running cdma lte and a few others senario creates this issue.

Change-Id: If9c5dc1a969605cd1eeb9218de02a9f8dbbd3ae1

Conflicts:
	telephony/java/android/telephony/SignalStrength.java
Add touch feedback to the clear all recents button

5 minutes of Photoshop™.

Change-Id: Idf8c97cf08a192605208cbee6f2ae41e0798e8d1
screenshot: quick delete action

Add option to delete screenshot from notification

Change-Id: I0f153bc3c72b902163b4ae75e220ddb09e3fcb11

Conflicts:
	packages/SystemUI/res/values/cm_strings.xml
Show confirmation for deleted screenshot.

Change-Id: I4a36cf06bf252e5e15fe08fbd054dc64a0a507ae
Appears black screen fix for a while

This issue is side-effect of added google patch on KK MR1.

Fix a couple of issues with mOpeningApps.
https://android.googlesource.com/platform/frameworks/base/+/a8ee262c04749db4f32f73d2b9e7f58989c4638b%5E%21/#F0

[Reproduce path]
Settings -> Location -> Location OFF -> Location ON -> "Location consent Dialog" Popup-> "Agree btn" press
-> Black screen appears for a while

Change-Id: I14efdce87e8d78d38f9aae48568f69937e4fe1fa
Keyguard: don't refresh ui when screen off

KeyguardStatusView is doing refresh all the time,
which cause high power when screen off.

Change-Id: Ifabdde4419a23e919cd52fe77e78ec3160575af1
frameworks/base: change no recent apps color for KK

Change the color of the label for when there are
no recent apps to the same as the KK style clock.