+
−TODO:
+
−
+
−- security checks
+
−
+
−- navigation in pic pages (really?)
+
−
+
−- verify that input files are images
+
−	convert doesnt always return an error code if it is no supported image type
+
−	so is the problem with gimp's xcf format
+
−
+
−- verify picture and thumbnail sizes are numbers