Major under-the-hood updates.

- Begin work on APIv2
  - change the way permissions work
  - add optional worldReadable flag
  - ability to set a content description
  - fix a bug with ExtensionData parceling
- Add private read API (DO NOT USE)
- Pass extra to extension settings activities

Change-Id: Ifcd3adb50457d50e745d05eb3f261ad15b48740f
Weather improvements:

- Add Low/High
- Add manual weather location preference using GeoPlanet API

Change-Id: I2837c3756a5c51706de8835064d169796e8e5218
Add sectioned inbox support
Add to private API. Also new update reason and weather extension throttling
Mini clock size for 10 inch tablets in portrait.

Also fix a bug with previous commit

Change-Id: Icbd514c0fea7b26b1bc76d44b077e3a1dee30070
Fixed Build

Change-Id: I586ce3caa6737e3a3d84732e3ff2ea5b6fa993ac
Use Hint instead of Test for more pretty laout

This makes the country/hint more visible across the board

Change-Id: Ibe81e62ca1392f7b40f83e0b53c5000f5b52f7ae
Build-related fix
Build-related fix
Disable phone-related extensions on non-telephony devices

Change-Id: I8f5a980190bc377e92f8b8c9abac2c9d4fa0ffef
Tweak colors for daydream

Change-Id: Ie9b44a95dd44fbacbe3f0fcc61894399747f64a8
Add iconUri() method to ExtensionData. Fixes issue 67.

Change-Id: Iee858c84e147f5f2f947d431e9de93ace9a71a7d
Minor UI tweak
Make the collapsed/expanded threshold higher for the lock screen
Mark implicit uses-feature's as non-required
Tweak presentation of weather low/high and forecast