camera: dont call cancelAutoFocus if the preview is stopped

Most sensors cant cancel autofocus when preview
is stopped.

Change-Id: I66c2ddcedf3ed42a00e8364daab2b2906ba3301c
Camera: Add red-eye flash mode

http://developer.android.com/reference/android/hardware/Camera.Parameters.html#FLASH_MODE_RED_EYE
Drawables by Steph310 @ xda

Signed-off-by: Michael Bestas <mikeioannina@gmail.com>

Change-Id: Ia0316348580bcf724c53ed30cf0066d99b75663b
Camera: Fix some derp

This commit removes some derp and code styling issues
interdruced by recent merged commits.

Change-Id: I6ac39f2bd66bf352b48696a3aa7b005edc9fa527