- 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_content6.adoc

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+== Special Characters
+
+/* */ 	are inline comments
+-- , # 	are line comments
+'Select * from users where name = ‘admin’--and pass = ‘pass’'
+
+; 		allows query chaining
+'Select * from users; drop table users;'
+
+’,+,||	allows string concatenation 
+Char()	strings without quotes
+'Select * from users where name = ‘+char(27) or 1=1'
+
+==  Special Statements
+
+Unions	allows overlapping of database tables
+'Select id, text from news 
+union all select name, pass from users'
+
+Joins allows connecting to other tables