Messages when adding tahoelafs server

src/freedombone-app-tahoelafs

     furl="$4"
 
     if [ ${#storage_hostname} -eq 0 ]; then
+        echo $'No storage hostname'
         return
     fi
     if [ ${#public_key} -eq 0 ]; then
+        echo $'No public key'
         return
     fi
     if [ ${#nick} -eq 0 ]; then
+        echo $'No nick'
         return
     fi
     if [ ${#furl} -eq 0 ]; then
+        echo $'No furl'
         return
     fi
 
         echo 'storage:' > ${tahoelafs_storage_file}
     else
         if grep -q "${public_key}" ${tahoelafs_storage_file}; then
+            echo $'Public key already exists'
             return
         fi
         echo '# storage' >> ${tahoelafs_storage_file}