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src/freedombone-utils-mongodb

     removemongo=
     if [ -f $MONGODB_APPS_FILE ]; then
         sed -i "/$app_name/d" $MONGODB_APPS_FILE
-        mongoapps=$(cat $MONGODB_APPS_FILE)
-        if [ ${#mongoapps} -lt 3 ]; then
+        if [ ! -s $MONGODB_APPS_FILE ]; then
             removemongo=1
         fi
     else
 
     if [ $removemongo ]; then
         apt-get -yq remove mongodb mongo-tools
+        apt-get -yq autoremove
         if [ -d /var/lib/mongodb ]; then
             rm -rf /var/lib/mongodb
         fi