Documentation improvements and various dependency updates
diff --git a/pom.xml b/pom.xml
index bbcfb33..cdbbbd6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -23,7 +23,7 @@
 
   <groupId>KorAP-modules</groupId>
   <artifactId>KorAP-lucene-index</artifactId>
-  <version>0.49.3</version>
+  <version>0.49.4</version>
   <packaging>jar</packaging>
 
   <name>KorAP-lucene-index</name>
@@ -47,7 +47,7 @@
   </developers>
 
   <properties>
-    <jersey.version>2.4.1</jersey.version>
+    <jersey.version>2.15</jersey.version>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
 
@@ -103,7 +103,7 @@
       <artifactId>lucene-core</artifactId>
       <groupId>org.apache.lucene</groupId>
       <type>jar</type>
-      <version>4.5.1</version>
+      <version>4.10.3</version>
     </dependency>
 
     <!-- Lucene queryparser dependency -->
@@ -111,7 +111,7 @@
       <artifactId>lucene-queryparser</artifactId>
       <groupId>org.apache.lucene</groupId>
       <type>jar</type>
-      <version>4.5.1</version>
+      <version>4.10.3</version>
     </dependency>
 
     <!-- Lucene analyzers dependency -->
@@ -119,7 +119,7 @@
       <artifactId>lucene-analyzers-common</artifactId>
       <groupId>org.apache.lucene</groupId>
       <type>jar</type>
-      <version>4.3.1</version>
+      <version>4.10.3</version>
     </dependency>
 
     <dependency>
@@ -159,17 +159,17 @@
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
-      <version>2.4.0</version>
+      <version>2.4.4</version>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-annotations</artifactId>
-      <version>2.4.0</version>
+      <version>2.4.4</version>
     </dependency>
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-core</artifactId>
-      <version>2.4.0</version>
+      <version>2.4.4</version>
     </dependency>
 <!--
     Temporarily disable @Experimental annotation