Ant properties names changed

application-package to application.package
sdk-location to sdk.dir
android-jar to android.jar
android-aidl to android.aidl
in order to make their names compliant with the ant standards and rest
of the property names.
Properties names in alias rules deliberately ommited in this CL.
Some minor style changes introduced.

tools/scripts/build.template

@@ -11,7 +11,7 @@
          used by the Ant rules.
          Here are some properties you may want to change/update:
 
-         application-package
+         application.package
              the name of your application package as defined in the manifest. Used by the
              'uninstall' rule.
          source.dir
@@ -29,7 +29,7 @@
     <property file="build.properties" />
 
     <!-- The default.properties file is created and updated by the 'android' tool, as well
-         as ADT. 
+         as ADT.
          This file is an integral part of the build system for your application and
          should be checked in in Version Control Systems. -->
     <property file="default.properties" />
@@ -37,11 +37,11 @@
     <!-- Custom Android task to deal with the project target, and import the proper rules.
          This requires ant 1.6.0 or above. -->
     <path id="android.antlibs">
-        <pathelement path="${sdk-location}/tools/lib/anttasks.jar" />
-        <pathelement path="${sdk-location}/tools/lib/sdklib.jar" />
-        <pathelement path="${sdk-location}/tools/lib/androidprefs.jar" />
-        <pathelement path="${sdk-location}/tools/lib/apkbuilder.jar" />
-        <pathelement path="${sdk-location}/tools/lib/jarutils.jar" />
+        <pathelement path="${sdk.dir}/tools/lib/anttasks.jar" />
+        <pathelement path="${sdk.dir}/tools/lib/sdklib.jar" />
+        <pathelement path="${sdk.dir}/tools/lib/androidprefs.jar" />
+        <pathelement path="${sdk.dir}/tools/lib/apkbuilder.jar" />
+        <pathelement path="${sdk.dir}/tools/lib/jarutils.jar" />
     </path>
 
     <taskdef name="setup"
@@ -58,7 +58,7 @@
          - copy the content of the main node <project> from android_rules.xml
          - paste it in this build.xml below the <setup /> task.
          - disable the import by changing the setup task below to <setup import="false" />
-         
+
          This will ensure that the properties are setup correctly but that your customized
          build steps are used.
     -->