o.a.c.u.NoSpamLoggerTest uses slf4j's SubstituteLogger, which doesn't exist in 1.7.2

upgrade slf4j to 1.7.7 which has it.

build.xml

@@ -333,9 +333,9 @@
           <dependency groupId="org.antlr" artifactId="antlr-runtime" version="3.5.2">
             <exclusion groupId="org.antlr" artifactId="stringtemplate"/>
           </dependency>
-          <dependency groupId="org.slf4j" artifactId="slf4j-api" version="1.7.2"/>
-          <dependency groupId="org.slf4j" artifactId="log4j-over-slf4j" version="1.7.2"/>
-          <dependency groupId="org.slf4j" artifactId="jcl-over-slf4j" version="1.7.2" />
+          <dependency groupId="org.slf4j" artifactId="slf4j-api" version="1.7.7"/>
+          <dependency groupId="org.slf4j" artifactId="log4j-over-slf4j" version="1.7.7"/>
+          <dependency groupId="org.slf4j" artifactId="jcl-over-slf4j" version="1.7.7" />
           <dependency groupId="ch.qos.logback" artifactId="logback-core" version="1.1.2"/>
           <dependency groupId="ch.qos.logback" artifactId="logback-classic" version="1.1.2"/>
           <dependency groupId="org.codehaus.jackson" artifactId="jackson-core-asl" version="1.9.2"/>
@@ -1187,7 +1187,7 @@
         <pathelement location="${build.dir}/${ant.project.name}-clientutil-${version}.jar" />
         <pathelement location="${build.dir}/${ant.project.name}-thrift-${version}.jar" />
         <pathelement location="${build.lib}/libthrift-0.9.0.jar" />
-        <pathelement location="${build.lib}/slf4j-api-1.7.2.jar" />
+        <pathelement location="${build.lib}/slf4j-api-1.7.7.jar" />
         <pathelement location="${build.lib}/log4j-over-slf4j.jar" />
         <pathelement location="${build.lib}/logback-core-1.1.2.jar" />
         <pathelement location="${build.lib}/logback-classic-1.1.2.jar" />