HDR video

* Toggles a parameter (string videoHdrParam in config.xml) on/off.

Change-Id: Iafedf74b7191ce35ab982c52f3188dc566de9d7b
camera: reset camera surface on previewstart()

fixes aspect ratio on camera switch bug

JIRA: CYAN-1085

Change-Id: Ic91e0454588a987e72e5336ab9d01bdd249f13e6
Revert "Clean up [fr]"

This reverts commit 07f0d27168467d5d00b4fe95d31feb9e204e3e47.
Revert "HDR video"

This reverts commit 9314c2f2f8c3525d24cc70c4870ee6ca9267c8b7.
Merge branch 'jb4.2' of git://github.com/SlimRoms/packages_apps_Camera into HEAD