Add execute permissions to rebuild script
Add execute permissions to rebuild script

avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox,avatao-content/challenge-toolbox