Exif code simplification

To simplify the code a bit, and make it more consistent with exif gathering in other plugins such as Exifography and phpThumb, I replaced the outdated phpExifRW with a call to the standard exif_read_data() from php.

function getExifData($yapbImage, $flagUnfiltered=false) {

			$result = null;
			/*
			require_once realpath(dirname(__file__) . '/phpExifRW-1.1/exifReader.inc');
			$phpExifReader = new phpExifReader($yapbImage->systemFilePath());
			$phpExifReader->ImageReadMode = 1; // This should turn off EXIF thumbnail caching too
			$result = $phpExifReader->getImageInfo();
			*/
			$result = exif_read_data($yapbImage->systemFilePath(), 'EXIF', FALSE, FALSE);
			// If the user wants his EXIF data filtered, we do that
			if (get_option('yapb_filter_exif_data') && ($flagUnfiltered == false)) {
				$result = ExifUtils::filterExifData($result);
			}

You can now delete the phpExifRW directory which pre-dates the implementation of exif_read_data() in Php 4.2
I then retrained the filter, selected the new/standard names and voila. Less code to manage plus consistent naming across the various exif using tools.

Gerrit

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