* XSS lesson completion fixes
* removed log all
* lesson progress capable of deprecated assignments in the database
* fixed unit test for lesson progress
* initial cut on XSS, need to add some tests still
* initial unit tests for assignment endpoints
* updating header comment license thingy
* comment, clean up
* Stubs for security unit test
* Additional Unit Testing
* isEncoded and isNotEncoded Unit Tests added
* http-proxies updates
* update for XXE solutions
* Work-around to handle special chars in action ... currently to be able to match {userId} in hint creation/assignment for IDOR
* IDOR hints updated
* mitigation content update
* mitigation content update ... 2
* Lesson Overview updates
* including restart lesson fix for lesson overview
- 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.
