Add missing "Notify for every message"...

Since Email now uses UnifiedEmail, this setting defaults to false
and there is no way to enable it; this commit adds this option,
which is then honored by the unified notification engine.

Change-Id: I5d4464026c6532c9aac87016368cf8e13d9cfbb5
Email: Add new check frequency options (2h, 4h & 1 day)

- Ported from cm-9 & cm-10

Change-Id: Ia59f4e8db5e7458a0e12d5530c25589cc84a79bf
Email: Add native heads up support per account (1/2)

Add native heads up notification support. User can set on every account
if he or she want this account as heads up notification or not.

This patch adds the settings for it as well the complete handling. Due
of a half broken NotificationCompat.Builder class we switch here to the
Notification.Builder class to get access to the methods we need. This is no
problem here due that we do not need compatibility on lower API's

Adapted to LP

Change-Id: Ia88d2f15f0eaf7ae024ab07dd4f74c6858f17f76
Email: change to switches

Change-Id: If34c0543e98255ae12c29bde1746b84fc1abd821
Email:Material Update

Color the status bar

Change-Id: I9a410f8b8bd09a9ff7e7db6c06d6e9f857821ea5
Merge remote-tracking branch 'temasek/cm-12.0' into cm-12.0