Merge "Make MediaScanner extract "date taken" from videos, if present" into nyc-mr1-dev

        { "writer", METADATA_KEY_WRITER },

        { "compilation", METADATA_KEY_COMPILATION },

        { "isdrm", METADATA_KEY_IS_DRM },

        { "date", METADATA_KEY_DATE },

        { "width", METADATA_KEY_VIDEO_WIDTH },

        { "height", METADATA_KEY_VIDEO_HEIGHT },

    };