Hygiene: Componentise mobile.stable.common

Kill some unused messages.
Split the module into logical units.
Add some deprecation notices to clean this up later.

Change-Id: Idf2a09f24da8afe40d554d7f0f732dd160d85e69
Hygiene: Move PageList to core template mechanism

(Testing Search, Nearby and Watchlist can verify this fix works)

Change-Id: I2c3025c72252c517f1edd25c114b50bd637f1adb