[+API] FLOW3 (AOP): Added the JoinPoint class to the supported API. Also added a new method "hasException()" to the JoinPoint implementation. Resolves #5480
[~TASK] FLOW3 (Cache): Set the log level of flushCachesByTag to DEBUG
[~FEATURE] FLOW3 (Security): Implemented a logging aspect which currently logs all relevant actions of the authentication mechanism. The advices are currently active regardless of the configured logging threshold. Addresses #5481
[~TASK] FLOW3 (Security): Removed getSecurityContext() from the Authentication Manager Interface – it was not used anywhere.
[~CONFIGURATION] FLOW3 (Security): Removed the requestPatterns configuration from the default security configuration. This configuration was only an example and got in the way if one wanted to reuse the DefaultProvider configuration for other login controllers.
[~TASK] Fluid (ViewHelpers): Corrected some inline documentation in the FormViewHelper