A patch from Carsten Schinzer for "LoginServices.userLogin add info to fail message" https://issues.apache.org/jira/browse/OFBIZ-5137

The LoginServices only specify that a user was not found, but it is of interest which user was not found.
I added that to the log message in the error case.





git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1470391 13f79535-47bb-0310-9956-ffa450edef68
Refactored GenericEntity so it contains Observable instead of extending Observable. This will enable copying the Observable aspect of the class.

Also replaced java.util.Observable with org.ofbiz.base.util.Observable. Anyone using the Observable functionality will need to change their imports.


git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1470392 13f79535-47bb-0310-9956-ffa450edef68