This reverts commit 8fd2a615.

Started using Apache Derby as an embedded database for the user management (Currently the database is not secured and passwords are not hashed yet)

Continued with the user management; Removed some unnecessary parts of Shiro; Continued with the template

Added the JSF taglib for Spring Security; Removed the login-"logic" from the UserBean and moved it to the Spring Framework; Started with the usage of templates for the existing pages; Started with the page for the user management; Added more security patters; Added another user for test purposes

Solved some security/redirecting issues with the root context; Corrected the login form; Corrected the link for the logout

Corrected the spring dependencies; Made sure that ACManager, FSManager and PluginFinder are managed by Spring as well

Updated the kieker-jar and some other dependencies; Added the user-properties; Some code-modifications for quality reasons; Refactoring

Added Apache Shiro for test purposes; Replaced toString-IDs with Registry-IDs; Added the connections for presentation purposes to the analysis editor again;

Started with the renaming of some components; Added serializable to some of the beans; Continued with the view integration

Started with an improved version of the GUI, including a multi user mode; Updated also the Kieker-jar.