Updated build script to unclude phpunit

build.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<project name="bitpay/magento-plugin" default="lint">
+<project name="bitpay/magento-plugin" default="build">
     <target name="clean" hidden="true">
         <delete dir="build/logs" verbose="true" />
     </target>
@@ -8,6 +8,8 @@
         <mkdir dir="build/logs" />
     </target>
 
+    <target name="build" depends="lint,phpunit" />
+
     <target name="lint" depends="prepare">
         <phplint>
             <fileset dir="app/code/community/Bitpay/Bitcoins">
@@ -18,4 +20,8 @@
             </fileset>
         </phplint>
     </target>
+
+    <target name="phpunit">
+        <phpunit printsummary="true" pharlocation="bin" />
+    </target>
 </project>