Check for Arduino revision in BaseNoGui.java instead of Base.java

Author: cmaglie

build/build.xml

@@ -166,7 +166,7 @@
     <echo message="Latest revision detected in shared/revision.txt is: ${revision}" />
 
     <!-- figure out the revision number in base.java -->
-    <loadfile srcfile="../app/src/processing/app/Base.java"
+    <loadfile srcfile="../arduino-core/src/processing/app/BaseNoGui.java"
 	      property="revision.base">
       <filterchain>
         <tokenfilter>
@@ -176,7 +176,7 @@
         </tokenfilter>
       </filterchain>
     </loadfile>
-    <echo message="Revision in Base.java is: ${revision.base}" />
+    <echo message="Revision in BaseNoGui.java is: ${revision.base}" />
   </target>
 
   <!-- - - - - - - - -->