don't let liquibase be quite so verbose with its logging. set it to WARN level by default.

resources/log4j.properties

@@ -15,4 +15,5 @@ log4j.appender.file.layout=org.apache.log4j.PatternLayout
 log4j.appender.file.layout.ConversionPattern=%d [%t] %-5p%c - %m%n
 
 # customizations to logging by package
-log4j.logger.metabase=DEBUG
\ No newline at end of file
+log4j.logger.metabase=DEBUG
+log4j.logger.liquibase=WARN
\ No newline at end of file