Remove CATEGORY as a parameter for Table.addColumn() pointed out in processing/processing-docs#501

Author: REAS

core/src/processing/data/Table.java

@@ -1790,7 +1790,7 @@ public void addColumn(String title) {
 
 
  /**
- * @param type the type to be used for the new column: INT, LONG, FLOAT, DOUBLE, STRING, or CATEGORY
+ * @param type the type to be used for the new column: INT, LONG, FLOAT, DOUBLE, or STRING
  */
  public void addColumn(String title, int type) {
  insertColumn(columns.length, title, type);