FIX: '&' -> 'and' to make Javadoc compiler happy

Author: xulman

src/main/java/net/celltrackingchallenge/measures/ImgQualityDataCache.java

@@ -189,7 +189,7 @@ public videoDataContainer(final String __imgPath, final int __v)
 		public int video;
 
 		/**
-		 * Representation of average & std. deviations within individual
+		 * Representation of average and std. deviations within individual
 		 * foreground masks.
 		 * Usage: avgFG[timePoint].get(labelID) = averageIntensityValue
 		 */
@@ -233,7 +233,7 @@ public double getRealVolume(final long vxlCnt)
 		public final Vector<Map<Integer,int[]>> boundingBoxesFG = new Vector<>(1000,100);
 
 		/**
-		 * Representation of average & std. deviations of background region.
+		 * Representation of average and std. deviations of background region.
 		 * There is only one background marker expected in the images.
 		 */
 		public final Vector<Double> avgBG = new Vector<>(1000,100);