ERComponentTour : Missing prinzipals

When starting the ERComponentTour example, I came across the following log messages:

Dez 01 17:32:42 N/A[N/A] WARN  NSLog  - Principal class '' not found in bundle JavaWOExtensions
Dez 01 17:32:42 N/A[N/A] WARN  NSLog  - Principal class '' not found in bundle ERCaptcha
Dez 01 17:32:42 N/A[N/A] WARN  NSLog  - Principal class 'er.examples..Application' not found in bundle ERComponentTour

The following pull request will eliminate them...