Settings: Lock screen music controls should default to on

This matches AOSP

Change-Id: Ia2cfd5fd59eeea27374533cc3db5ee0c9bb00b44
Fix broken target icon.

Steps to reproduce:
- Assign an icon from file
- Save
- Reopen lockscreen targets
- Assign a resource icon
- Save

Result: You'll get the application icon, because the icon file reference
is still present, but the file is no longer there.

Change-Id: I8851f5fbdebfeeef9459c5b44c599e489b2dda3a
Merge "Fix broken target icon." into cm-10.2
Merge pull request #23 from CyanogenMod/cm-10.2

CM sync