- Introduced user registration

- Now using Spring Boot for classloading, this way local development does not need to restart the complete server
- Fixed all kinds of dependencies on the names of the lessons necessary to keep in mind during the creation of a lesson.
- Simplied loading of resources, by adding resource mappings in MvcConfig.
- Refactored plugin loading, now only one class is left for loading the lessons.

webgoat-lessons/sql-injection/src/main/resources/lessonPlans/en/SqlInjection_content5b.adoc

@@ -0,0 +1,9 @@
+== Try It!   Numeric SQL Injection
+
+The query in the code builds a dynamic query as seen in the previous example.  The query in the code builds a dynamic query by concatenating a number making it susceptible to Numeric SQL injection: 
+
+-------------------------------------------------------
+"select * from users where employee_id = "  + userID;
+-------------------------------------------------------
+
+Using the form below try to retrieve all the users from the users table. You shouldn't need to know any specific user name to get the complete list, however you can use '101' to see the data for one user.