* get a range on the sequence as a string
*
* @param start
- * position relative to start of sequence including gaps (from 0)
+ * (inclusive) position relative to start of sequence including gaps
+ * (from 0)
* @param end
- * position relative to start of sequence including gaps (from 0)
+ * (exclusive) position relative to start of sequence including gaps
+ * (from 0)
*
* @return String containing all gap and symbols in specified range
*/