Fixed username and password when generic images are created

src/freedombone-config

 PROJECT_NAME='freedombone'
 
 # username created by default within a debian image
-DEFAULT_IMAGE_USERNAME='fbone'
+GENERIC_IMAGE_USERNAME='fbone'
 
 export TEXTDOMAIN=${PROJECT_NAME}-config
 export TEXTDOMAINDIR="/usr/share/locale"
         esac
         case $(cat $data) in
             1) if [ -d /home/$MY_USERNAME/.gnupg ]; then
-				   rm -rf /home/$MY_USERNAME/.gnupg
-			   fi
-			   break;;
+                   rm -rf /home/$MY_USERNAME/.gnupg
+               fi
+               break;;
             2) interactive_gpg_from_usb
                break;;
             3) interactive_gpg_from_remote
         fi
     fi
 
-    if [ -d /home/$DEFAULT_IMAGE_USERNAME ]; then
+    if [ -d /home/$GENERIC_IMAGE_USERNAME ]; then
         # when installing from an image which comes with a known default user account
         selected_username=
         while [ ! $selected_username ]
                    if [[ $possible_username != *' '* && $possible_username != *'/'* && $possible_username != *'\'* && $possible_username != *'*'* ]]; then
                        if [ $possible_username ]; then
                            if [ ${#possible_username} -gt 1 ]; then
-                               if [[ $possible_username != $DEFAULT_IMAGE_USERNAME ]]; then
+                               if [[ $possible_username != $GENERIC_IMAGE_USERNAME ]]; then
                                    MY_USERNAME=$(cat $data)
-                                   usermod -l $MY_USERNAME $DEFAULT_IMAGE_USERNAME
+                                   usermod -l $MY_USERNAME $GENERIC_IMAGE_USERNAME
                                    usermod -d /home/$MY_USERNAME -m $MY_USERNAME
                                    break
                                fi

src/freedombone-image

 export TEXTDOMAIN=${PROJECT_NAME}-image
 export TEXTDOMAINDIR="/usr/share/locale"
 
+# fixed username and password when the --generic option is used
+GENERIC_IMAGE_USERNAME='fbone'
+GENERIC_IMAGE_PASSWORD='freedombone'
+
 IMAGE_TYPE='beaglebone'
 CURR_DIR=$(pwd)
 CURR_USER=$(echo $USER)
     fi
 fi
 
+if [[ $GENERIC_IMAGE == "yes" ]]; then
+    USERNAME=$GENERIC_IMAGE_USERNAME
+    PASSWORD=$GENERIC_IMAGE_PASSWORD
+fi
+
 if [ ! $PASSWORD ]; then
     # generate a random password
     PASSWORD="$(openssl rand -base64 10 | cut -c1-8)"