Fixed build.xml to reference new file hierarchy

Also changed pom to keep java 1.7

com.amd.aparapi/build.xml

@@ -53,7 +53,7 @@
 		  effort="max"
 		  reportlevel="low"
 		  outputfile="${basedir}/findbugs/aparapi.xml">
-		     <sourcePath path="${basedir}/src/java" />
+		     <sourcePath path="${basedir}/src/main/java" />
 			 <class location="${basedir}/classes" />
 	   </findbugs>
 	</target>
@@ -71,7 +71,7 @@
    	   <mkdir dir="dist"/>
    	   <javac debug="true"
    	      debuglevel="lines,vars,source"
-   		  srcdir="${basedir}/src/java"
+   		  srcdir="${basedir}/src/main/java"
    		  destdir="${basedir}/classes"
    		  includeantruntime="false">
           <compilerarg value="-Xlint"/>

com.amd.aparapi/pom.xml

@@ -7,8 +7,8 @@
     <packaging>jar</packaging>
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
+        <maven.compiler.source>1.7</maven.compiler.source>
+        <maven.compiler.target>1.7</maven.compiler.target>
     </properties>
     <distributionManagement>
         <snapshotRepository>