What changes does low_ram make?

- Multiple users support is disabled
- Split screen is disabled
- Some smaller animations are disabled
- SystemUI: In Recents, apps do not overlay and have lower resolution previews
- SystemUI: In Recents, the 'Clear all' button is at the very bottom and always visible

- Launcher3/Trebuchet: Some extra accents are disabled
- Contacts/Dialer/Email: Icon cache is altered
- Documents: 
- Settings: Many settings are hidden

- Signal/Silence: Max resolution for MMS image size reduction is lower
- Muzei: Blur isn't as aggressive by default


How much RAM is saved?
	- Under 15.1 after boot settles
		- mako: ~370MB -> ~310MB used by system
		- d852: ~850MB -> ~680MB
