Update Undertow to Java 8

It appears to sacrifice slightly in some areas while
coming out ahead in others

frameworks/Java/undertow/install.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-fw_depends java7 maven
+fw_depends java8 maven

frameworks/Java/undertow/pom.xml

@@ -75,7 +75,7 @@
         <dependency>
             <groupId>com.github.spullara.mustache.java</groupId>
             <artifactId>compiler</artifactId>
-            <version>0.8.17</version>
+            <version>0.9.0</version>
         </dependency>
     </dependencies>
 
@@ -87,8 +87,8 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.1</version>
                 <configuration>
-                    <source>1.7</source>
-                    <target>1.7</target>
+                    <source>1.8</source>
+                    <target>1.8</target>
                     <optimize>true</optimize>
                     <debug>false</debug>
                 </configuration>

frameworks/Java/undertow/setup.sh

@@ -1,9 +1,9 @@
 #!/bin/bash
 # load java environment variables
-source $IROOT/java7.installed
+source $IROOT/java8.installed
 
 sed -i 's|DATABASE_HOST|'"${DBHOST}"'|g' src/main/resources/hello/server.properties
 
 mvn clean compile assembly:single
 cd target
-java -jar undertow-example-0.1-jar-with-dependencies.jar &
+$JAVA_HOME/bin/java -jar undertow-example-0.1-jar-with-dependencies.jar &