Update to SLF4J 1.7.5

James Moger

2014-04-15 a4f7cc8758e9eb2d564acdcf2f671b358aac972c

 src/test/java/com/gitblit/tests/mock/MockRuntimeManager.java

@@ -137,7 +137,7 @@
   }

   @Override
   public IRuntimeManager setup() {
   public IRuntimeManager start() {
      return this;
   }
}