The war (1.2.1) will deploy with the following warning, but will still work.
INFO: Deploying web application archive C:\apps\apache-tomcat-7.0.26\webapps\timemachine-web-1.2.1.war
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further
However, we can't configure the logging for the war, unless we unpack it and add the missing jar into the WEB-INF/lib directory.
Also, because we already packaged slf4j-api in the war file, we can't simple load slf4j-log4j into the TOMCAT_HOME/lib. It must be done in WEB-INF/lib for now.