Pass DMDIRC_HOME to unit tests.

Fixes Issue 0003635: make ant set DMDIRC_HOME env variable when running unit tests.

Change-Id: I5a2ee45945b2f511dbf63114e567e8ef992c65fe
Reviewed-on: http://gerrit.dmdirc.com/644
Automatic-Compile: Chris Smith <chris@dmdirc.com>
Reviewed-by: Chris Smith <chris@dmdirc.com>

nbproject/build-impl.xml

     <path id="plugins.libs">
         <fileset dir="modules/plugins/lib" includes="*.jar"/>
     </path>
+    <property name="test_profile_dir" value="./test_profile"/>
     <target name="-pre-init">
         <!-- Empty placeholder for easier customization. -->
         <!-- You can override this target in the ../build.xml file. -->
             <attribute default="${excludes}" name="excludes"/>
             <attribute default="**" name="testincludes"/>
             <sequential>
+                <delete dir="${test_profile_dir}"/>
                 <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" showoutput="true" timeout="120000">
                     <classpath>
                         <pathelement path="${clover.jar}"/>
                     </classpath>
+                    <env key="DMDIRC_HOME" value="${test_profile_dir}"/>
                     <classpath refid="plugins.libs"/>
                     <batchtest todir="${build.test.results.dir}">
                         <clover-optimized-testset>
                     <formatter type="xml"/>
                     <jvmarg line="${run.jvmargs}"/>
                 </junit>
+                <delete dir="${test_profile_dir}"/>
             </sequential>
         </macrodef>
     </target>
             <attribute default="${excludes}" name="excludes"/>
             <attribute default="**" name="testincludes"/>
             <sequential>
+                <delete dir="${test_profile_dir}"/>
                 <junit dir="${work.dir}" errorproperty="tests.failed" failureproperty="tests.failed" fork="true" showoutput="true" timeout="120000">
                     <classpath refid="plugins.libs"/>
+                    <env key="DMDIRC_HOME" value="${test_profile_dir}"/>
                     <batchtest todir="${build.test.results.dir}">
                         <fileset dir="${main.test.dir}" excludes="@{excludes},${excludes}" includes="@{includes}">
                             <filename name="@{testincludes}"/>
                     <formatter type="xml"/>
                     <jvmarg line="${run.jvmargs}"/>
                 </junit>
+                <delete dir="${test_profile_dir}"/>
             </sequential>
         </macrodef>
     </target>