Cleaned up datamodel regression tests a bit more. Removed all precond targets

bindings/java/build-unix.xml

 <?xml version="1.0" encoding="windows-1252"?>
 <project name="TSKTestTargets">
-	<target name="test-precond" 
+	<target name="test" 
 			description="Performs regression tests."
 			depends="compile-test, copyTSKLibs">
 		<junit fork="on" haltonfailure="yes" dir=".">
@@ -13,7 +13,7 @@
 		</junit>
 	</target>
 
-	<target name="test-rebuild-precond"
+	<target name="test-rebuild"
 			description="Rebuilds regression tests."
 			depends="compile-test, copyTSKLibs">
 		<java classname="org.sleuthkit.datamodel.DataModelTestSuite" classpathref="libraries"	fork="true" failonerror="true">

bindings/java/build-windows.xml

@@ -7,7 +7,7 @@
 	</condition>
     <property name="dlls" value="${env.LIBEWF_HOME}/msvscpp/zlib;${env.LIBEWF_HOME}/msvscpp/Release;../../win32/Release"/>
 
-	<target name="test-precond" 
+	<target name="test" 
 			description="Runs the regression tests."
 			depends="compile-test" >
 		<fail unless="ewfFound" message="LIBEWF_HOME must be set as an environment variable."/>
@@ -22,7 +22,7 @@
 		</junit>
 	</target>
 
-	<target name="test-rebuild-precond"
+	<target name="test-rebuild"
 			description="Rebuilds gold standards for tests."
 			depends="compile-test" >
 		<fail unless="ewfFound" message="LIBEWF_HOME must be set as an environment variable."/>

bindings/java/build.xml

@@ -121,14 +121,5 @@ pattern="lib/[artifact]-[revision](-[classifier]).[ext]" />
 		<bunzip2 src="${test-input}/dfr-16-ext.dd.bz2" /> -->
 	</target>
 
-	<!-- all of the work is done in test-precond -->
-	<target name="test" 
-		description="Runs set of regression tests."
-		depends="compile-test, test-precond">
-	</target>
-
-	<target name="test-rebuild"
-		description="Rebuilds gold standards."
-		depends="compile-test, test-rebuild-precond">
-	</target>
+	<!-- NOTE: test and test-rebuild targets are in the OS-specific files -->
 </project>