!! SLF4J , Simple Logging Facade for Java

[website|http://www.slf4j.org/]
[JIRA issue 376|https://issues.apache.org/jira/browse/JSPWIKI-376]

!! Steps
# run the [slf4j migrator|http://www.slf4j.org/migrator.html]
# add the slf4j-api.jar to the eclipse buildpath
# src change: ''log.fatal('' ==> ''log.error(''
# change build.xml so that slf4j-api.jar is added to WEB-INF/lib
# test with tomcat 
# test with WebSphere (old JSPWiki version and new (slf4j) JSPWiki version