EDIT

remove further featureTree and featureNodeService occurrences

cleanup and remove usage of feature tree service

ref #9497 AccountRegistrationService tesing for existing usernames & adding exist check methods to dao

cleanup and renaming some functional test classes (cont. II)

cleanup and renaming some functional test classes (cont.)

cleanup and renaming some functional test classes

ref #9497 fixing test calls bean binding

fix #9497 User self registration service implemented

• more interfaces and abstract classes
• AccountRegistrationService implemented
• test implemented

ref #9497 abstract base classes for Request tokens and stores

ref #9758 switching to other javax.mail implementation (step 2) and fixing port issues in test