More Travis testing

toolset/setup/linux/languages/rvm.sh

@@ -12,7 +12,7 @@ RETCODE=$(fw_exists rvm.installed)
 if [ "$TRAVIS" = "true" ]
 then
   #echo "source /home/travis/.rvm/scripts/rvm" > $IROOT/rvm.installed
-  echo "source /home/travis/.rvm/scripts/rvm" > $IROOT/rvm.installed
+  echo "" > $IROOT/rvm.installed
 else
   # Run single-user installation and source rvm
   export SHELL=/bin/bash