Check that certificates are created

src/freedombone-clientcert

 # create a user cert
 freedombone-addcert -h $USERNAME --nodh
 
+if [ ! -f /etc/ssl/private/$USERNAME.key ]; then
+    echo 'User certificates were not created'
+    rm -rf /home/$USERNAME/emailcert
+    exit 74835
+fi
+
 # create a certificate request
 openssl req -new -sha256 -subj "/O=$ORGANISATION/OU=$UNIT/C=$COUNTRY_CODE/ST=$AREA/L=$LOCATION/CN=$USERNAME" -key /etc/ssl/private/$USERNAME.key -out /etc/ssl/requests/$USERNAME.csr
 
+if [ ! -f /etc/ssl/requests/$USERNAME.csr ]; then
+    echo 'Certificate request was not created'
+    rm -rf /home/$USERNAME/emailcert
+    exit 83520
+fi
+
 # sign the certificate request
+cd /etc/ssl
 openssl ca -config /etc/ssl/dovecot-ca.cnf -in /etc/ssl/requests/$USERNAME.csr -out /etc/ssl/certs/$USERNAME.cer
 
+if [ ! -f /etc/ssl/certs/$USERNAME.cer ]; then
+    echo 'Authentication certificate was not created'
+    rm -rf /home/$USERNAME/emailcert
+    exit 343569
+fi
+
 # move the cert to the user's home
 mkdir /home/$USERNAME/emailcert
 mv /etc/ssl/certs/$USERNAME.cer /home/$USERNAME/emailcert