build: update exterman dependencies

updated: guava, logback, slf4j, spring

pom.xml

@@ -207,7 +207,7 @@
         <dependency>
             <groupId>org.springframework</groupId>
             <artifactId>spring-context</artifactId>
-            <version>3.0.2.RELEASE</version>
+            <version>3.0.5.RELEASE</version>
         </dependency>
         <dependency>
             <groupId>junit</groupId>
@@ -223,22 +223,22 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.6.0</version>
+            <version>1.6.1</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>log4j-over-slf4j</artifactId>
-            <version>1.6.0</version>
+            <version>1.6.1</version>
         </dependency>
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>0.9.21</version>
+            <version>0.9.26</version>
         </dependency>
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>r05</version>
+            <version>r07</version>
         </dependency>
 
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