Reduce warning verbosity in aapt

- Attributed source of problems to the correct file.
- Only verify string localizations against valid
  locales.
Bug:13140015
Change-Id: I9dabc5efa0510649caee8af0c8ebb803d6f48269
ConnectivtyService : Execute connectivityCheck in thread pool

Since this async task takes long when doing things like waiting for
network connectivity...etc, rather than holding up the single executor
of async task for the framework (app_process), run it on a thread from
the pool so other tasks can execute in parallel.

Change-Id: I7b88a4837c7e117ef47014a20c57f828b811edfb
Take date into account to not overflow icons in stock or center clock
- This commit complements this other: https://github.com/cristianomatos/android_frameworks_base/commit/0f1165e0149850107314b9781acf2c2b9994f8e7

Change-Id: I469aedf2abb811edbe180a397480829f33ea3245
Compiler fix attempt #004

Change-Id: I2eaabf73a6511e1c434c9483a2076b1f71c479c8