updated Java Spark to 2.8.0 and Jackson to 2.9.7 to fix security issues!

Author: fquirin

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>net.b07z.sepia.server.core</groupId>
     <artifactId>sepia-core-tools</artifactId>
-    <version>2.0.2</version>
+    <version>2.1.0</version>
     <name>SEPIA Core-Tools</name>
     <description>The Core-Tools repository contains classes and methods that are shared by all SEPIA servers and other tools like the SDK.</description>
     <url>https://github.com/SEPIA-Framework/sepia-core-tools-java</url>
@@ -68,7 +68,7 @@
 	    <dependency>
 	  		<groupId>com.sparkjava</groupId>
 	  		<artifactId>spark-core</artifactId>
-	  		<version>2.5.4</version>
+	  		<version>2.8.0</version>
 	  	</dependency>
 	  	<!-- <dependency>
 		    <groupId>org.slf4j</groupId>
@@ -88,7 +88,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.7.0</version>
+            <version>2.9.7</version>
         </dependency>
         <dependency>
             <groupId>commons-lang</groupId>