(cherry picked from commit 3ccee3ba)

Ensure app is foreground when we start service

(cherry picked from commit f32739cf)

(cherry picked from commit 54e4a066)

(cherry picked from commit cb9cb1b3)

(cherry picked from commit f0004698)

(cherry picked from commit 73845dd1)

(cherry picked from commit e2aa54c7)

(cherry picked from commit d3308f79)

(cherry picked from commit 7000f6d9)

(cherry picked from commit e4aef375)

(cherry picked from commit 8f40a8df)

(cherry picked from commit b1b1ae7c)

Close #526

(cherry picked from commit d533f129)

(cherry picked from commit 4471bcc9)

(cherry picked from commit d68b95d3)

(cherry picked from commit b8fd87d2)

(cherry picked from commit c5cb324d)

(cherry picked from commit bfa84f3c)

Unregister it before selecting a new output/device.
Register it after selecting a new output/device.

(cherry picked from commit 47b50ec3)

(cherry picked from commit c9cf56f2)

(cherry picked from commit 12e39079)

(cherry picked from commit 13a123e6)

On Android 4.0.x

(cherry picked from commit e943418c)

(cherry picked from commit 0df40ab0)

(cherry picked from commit 17835234)

(cherry picked from commit fd165128)

(cherry picked from commit b74887c6)

(cherry picked from commit c32f99fa)

(cherry picked from commit 516a2df0)

(cherry picked from commit df65474f)

(cherry picked from commit c164267c)

(cherry picked from commit de27fd29)

(cherry picked from commit 23819683)

(cherry picked from commit 0211b8df)

(cherry picked from commit 5924da80)

(cherry picked from commit 2a2d72dc)

(cherry picked from commit 256d9334)