Modify release_beta to modify experiment files (testing3 and testing_changes3)...

Modify release_beta to modify experiment files (testing3 and testing_changes3) so it's easy to roll changes out gradually to the population

tools/release_beta.sh

@@ -64,7 +64,7 @@ function Build {
   zip -ry iTerm2-${NAME}.zip iTerm.app
  
   # Update the list of changes
-  vi $SVNDIR/source/appcasts/testing_changes.txt
+  vi $SVNDIR/source/appcasts/testing_changes3.txt
  
   # Place files in website git.
   cp iTerm2-${NAME}.zip $SVNDIR/downloads/beta/
@@ -76,11 +76,11 @@ function Build {
   shasum -a256 iTerm2-${NAME}.zip | awk '{print $1}' >> $SVNDIR/downloads/beta/iTerm2-${NAME}.changelog
   vi $SVNDIR/downloads/beta/iTerm2-${NAME}.changelog
   pushd $SVNDIR
-  git add downloads/beta/iTerm2-${NAME}.summary downloads/beta/iTerm2-${NAME}.description downloads/beta/iTerm2-${NAME}.changelog downloads/beta/iTerm2-${NAME}.zip source/appcasts/testing.xml source/appcasts/testing_changes.txt
+  git add downloads/beta/iTerm2-${NAME}.summary downloads/beta/iTerm2-${NAME}.description downloads/beta/iTerm2-${NAME}.changelog downloads/beta/iTerm2-${NAME}.zip source/appcasts/testing3.xml source/appcasts/testing_changes3.txt
   popd
   # Prepare the sparkle xml file
-  SparkleSign ${SPARKLE_PREFIX}testing.xml ${SPARKLE_PREFIX}template.xml
+  SparkleSign ${SPARKLE_PREFIX}testing3.xml ${SPARKLE_PREFIX}template3.xml
   popd
 }