Minor changes to android build.xml.

build.xml

@@ -1,16 +1,11 @@
-<!--
-  - Overall Android native build script (for convenience)
-  -
-  - If new GamePlay samples are added please keep this list
-  - in sync.
- -->
-<project name="GamePlay-Android" default="all" basedir=".">
+<!-- Android build script -->
+<project name="gameplay" default="all" basedir=".">
 
-  <fail message="OS not supported (must be Windows, MacOS X, or Linux)">
+  <fail message="OS not supported. Supported platforms: Windows, MacOS X or Linux.">
     <condition>
       <not>
         <or>
-          <os family="unix"/> <!-- includes MacOS X -->
+          <os family="unix"/>
           <os family="windows"/>
         </or>
       </not>
@@ -21,7 +16,6 @@
     <attribute name="location"/>
     <sequential>
 
-      <!-- Non-Windows execs -->
       <exec osfamily="unix" dir="@{location}/android" executable="android">
         <arg value="update"/>
         <arg value="project"/>
@@ -33,7 +27,6 @@
       </exec>
       <exec osfamily="unix" dir="@{location}/android" executable="ndk-build"/>
 
-      <!-- Windows execs -->
       <exec osfamily="windows" dir="@{location}/android" executable="cmd">
         <arg value="/c"/>
         <arg value="android.bat"/>
@@ -49,7 +42,7 @@
         <arg value="/c"/>
         <arg value="ndk-build"/>
       </exec>
-
+      
     </sequential>
   </macrodef>
 
@@ -63,4 +56,5 @@
     <build-native location="samples/racer"/>
     <build-native location="samples/spaceship"/>
   </target>
+  
 </project>