Upgrade to latest slf4j


git-svn-id: https://svn.apache.org/repos/asf/geronimo/gshell/trunk@784669 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 882931a..80652a0 100644
--- a/pom.xml
+++ b/pom.xml
@@ -59,13 +59,13 @@
             <dependency>
                 <groupId>org.slf4j</groupId>
                 <artifactId>slf4j-api</artifactId>
-                <version>1.5.6</version>
+                <version>1.5.8</version>
             </dependency>
 
             <dependency>
                 <groupId>org.slf4j</groupId>
                 <artifactId>slf4j-log4j12</artifactId>
-                <version>1.5.6</version>
+                <version>1.5.8</version>
                 <exclusions>
                     <exclusion>
                         <groupId>javax.jms</groupId>
@@ -89,7 +89,7 @@
             <dependency>
                 <groupId>org.slf4j</groupId>
                 <artifactId>jcl-over-slf4j</artifactId>
-                <version>1.5.6</version>
+                <version>1.5.8</version>
             </dependency>
 
             <dependency>