[Android] Save audio playback speed option

[Geoffrey Métais]

vlc-android | branch: master | Geoffrey Métais <geoffrey.metais at gmail.com> | Mon Jun 27 19:34:10 2016 +0200| [b7c96b77862e55475b322ec998408f0713b0374a] | committer: Geoffrey Métais

Save audio playback speed option

> https://code.videolan.org/videolan/vlc-android/commit/b7c96b77862e55475b322ec998408f0713b0374a
---

 vlc-android/res/values/strings.xml                     | 17 ++++-------------
 vlc-android/res/xml/preferences_adv.xml                | 16 ++++++++++------
 vlc-android/src/org/videolan/vlc/PlaybackService.java  | 18 +++++++++++-------
 .../videolan/vlc/gui/dialogs/PlaybackSpeedDialog.java  |  7 ++++---
 .../vlc/gui/preferences/PreferencesActivity.java       |  4 +++-
 .../videolan/vlc/gui/video/VideoPlayerActivity.java    | 15 +++++++--------
 6 files changed, 39 insertions(+), 38 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/b7c96b77862e55475b322ec998408f0713b0374a