Run cryptpad install script for mesh

src/freedombone-app-cryptpad

 su -c 'bower install' - cryptpad
 cp config.example.js config.js
 EOF
+    chmod +x $rootdir/usr/bin/install_cryptpad
+    chroor "$rootdir" /usr/bin/install_cryptpad
 
     if [ ! -f $rootdir$CRYPTPAD_DIR/config.js ]; then
         echo $'Cryptpad config file not found'
         exit 628252
     fi
 
+    rm $rootdir/usr/bin/install_cryptpad
+
     sed -i "s|httpPort:.*|httpPort: $CRYPTPAD_PORT,|g" $rootdir$CRYPTPAD_DIR/config.js
     sed -i "s|// domain:|domain:|g" $rootdir$CRYPTPAD_DIR/config.js
     sed -i 's|openFileLimit:.*|openFileLimit: 1024,|g' $rootdir$CRYPTPAD_DIR/config.js