updated comments on the java files making sure to remove any typos that were spotted

Author: pjkaufman

.gitignore

@@ -5,4 +5,7 @@ dbdiffchecker/*.class
 build/
 
 # test data
-test/
+test/
+
+# vs code files
+.vscode

dbdiffchecker/Column.java

@@ -2,8 +2,11 @@
 
 /**
  * Column resembles a column in MySQL and contains column info.
+ * Program Name: Database Difference Checker
+ * CSCI Course: 325
+ * Grade Received: Pass
  * @author Peter Kaufman
- * @version 8-5-18
+ * @version 2-16-19
  * @since 9-10-17
  */
 public class Column extends Schema {