Updated to 2.3.0rc2
Spelling: callback

Signed-off-by: Shazron Abdullah <shazron@apache.org>
Spelling: create

Signed-off-by: Shazron Abdullah <shazron@apache.org>
Spelling: should

Signed-off-by: Shazron Abdullah <shazron@apache.org>
Spelling: writer

Signed-off-by: Shazron Abdullah <shazron@apache.org>
Fixes CB-2109 device.platform value in audio

The audio test file relies on device.platform in order to create
the file for recording on iOS.  Had to be updated to look for the
new value of "iOS"
Updated version to 2.3.0