Identicons: Add identicons to ChaOS Lab [1/3]

When enabled, new contacts will be assigned a unique
5x5 identicon as the contact photo instead of the boring
default one.

PS2:
Make Identicon an abstract class so we can use it to
create different types of identicons.  For starters
we'll use the github style in GithubIdenticon.  This
opens up the door to other types.

PS3:
Season with some salt.

PS4:
Use PNG format and tag it using an iTXt chunk before the
IEND to tag it with "identicon_marker" indicating it is
an identicon.  We can use this to identify if a photo is
an identicon and if so do what we want with it, like
removing identicons.

PS5:
We'll stick with JPG format and add a comment block to
the end.

PS6:
Better...stronger...faster.

PS7:
Add the dot matrix identicon

PS8:
Rename PolkaDotsIdenticon to DotMatrixIdenticon

PS9:
Clean up for release and add proper ChaOS Lab annotations.

Change-Id: I95fdca30686a2993ba5c2a9024a3cf5935b5d360

Conflicts:
	core/java/android/provider/Settings.java
Merge "Lockscreen custom wallpaper [1/2]" into kk44

Signed-off-by: scott <scott@ubuntu.com>

Conflicts:
	core/java/android/provider/Settings.java
	packages/Keyguard/src/com/android/keyguard/KeyguardViewManager.java

Change-Id: I9d9a2a316db9deef78d975884aec2670b6f75e0e

Conflicts:
	core/java/android/provider/Settings.java
	packages/Keyguard/src/com/android/keyguard/KeyguardViewManager.java
SystemUI: Only show H+ if config_hspa_data_distinguishable is set

Currently the UI is not consistent. If config_hspa_data_distinguishable
is not set you get 3G icon on HSPA and H+ icon on HSAPP.

Change-Id: I09db3a2902e30290206eafd1f64c940bab5b89e6
Check ProcessesReady before broadcast

Most of the time testIsSystemReady is used to know if we are allowed to broadcast intents.
But in broadcast intent method we check mProcessesReady flag (not mSystemReady).
If we broadcast after systemReady flag but before ProcessesReady flag, system will crash

Adding condition to check if system & processes are ready fix that race condition

Change-Id: I17e42bff957164b139f85ee92ace1c5867e7265a
Signed-off-by: Fabien DUVOUX <fabien.duvoux@gmail.com>
Merge Derp