Docker Rework

See merge request !43

Security fix

See merge request !49

fixed ConfidentialClientApplication

See merge request !48

# Conflicts:
#   README.md

fixed ConfidentialClientApplication

See merge request !44

# Conflicts:
#   application/module-language-school/src/main/java/org/fuseri/modulelanguageschool/user/UserController.java

M3 fix exercise scopes

See merge request !47

LanguageSchool fixes + enrol expel rework

See merge request !46

Certificate - Easy fixes from review

See merge request !45

# Conflicts:
#	application/confidentialClient/src/main/java/org/fuseri/confidentialclient/AuthClientController.java