FOP-2889: Make JAI optional

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@1878161 13f79535-47bb-0310-9956-ffa450edef68

fop-core/pom.xml

@@ -81,13 +81,13 @@
       <groupId>javax.servlet</groupId>
       <artifactId>servlet-api</artifactId>
       <version>2.2</version>
-      <scope>compile</scope>
+      <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.ant</groupId>
       <artifactId>ant</artifactId>
       <version>1.9.15</version>
-      <scope>compile</scope>
+      <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>org.apache.pdfbox</groupId>
@@ -98,13 +98,13 @@
       <groupId>javax.media</groupId>
       <artifactId>jai-core</artifactId>
       <version>1.1.3</version>
-      <scope>compile</scope>
+      <scope>provided</scope>
     </dependency>
     <dependency>
       <groupId>com.sun.media</groupId>
       <artifactId>jai-codec</artifactId>
       <version>1.1.3</version>
-      <scope>compile</scope>
+      <scope>provided</scope>
     </dependency>
     <!-- test deps -->
     <dependency>