Slight improvement of configtest handling in Unix shell script:
Slight improvement of configtest handling in
Unix shell script:

- add to usage
- don't use CATALINA_OPTS (think memory size etc.)
- log a message if status != 0


git-svn-id: 79cef5a5a257cc9dbe40a45ac190115b4780e2d0@1137607 13f79535-47bb-0310-9956-ffa450edef68

Nickname0806/Test_Q4,apache/tomcat,Nickname0806/Test_Q4,apache/tomcat,Nickname0806/Test_Q4,Nickname0806/Test_Q4,apache/tomcat,apache/tomcat,apache/tomcat