Guard against fragment disappearing before callback.

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Do thread trimming as JobManager job rather than AsyncTask.

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reorder window feature requests in MediaPreviewActivity

ActionBar is initialized in a different way by AppCompat v20 compared to
ABS or v21 even...
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fix for ringtone selection with android-support-v4-preferencefragment
Try to fix LGE menu button NPEs
fix based on https://code.google.com/p/android/issues/detail?id=78154

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Revert "Try to fix LGE menu button NPEs"

This reverts commit f3a3aaca6051b5ae464c026ff8d72e51a1d5a8a6.
compat actionbar bg for dark theme

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Bump version to 2.3.2

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PushNetworkException for network errors on external downloads.

Closes #2112
Fixes #1264

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Merge remote-tracking branch 'upstream/master'