Turn on vim spell checking in mutt configuration

src/freedombone-app-vim

@@ -30,8 +30,11 @@
 
 VARIANTS='full-vim'
 
-vim_variables=(MY_USERNAME)
 VIM_TEMP_DIR='.vimtemp'
+VIM_MUTT_EDITOR='vim \"+set nonumber\" \"+set insertmode\" \"+set spell\" +/^$/ +9'
+
+vim_variables=(MY_USERNAME
+               VIM_MUTT_EDITOR)
 
 function change_password_vim {
     echo -n ''
@@ -211,18 +214,18 @@ function install_vim {
     # add a mutt entry to use Vim to compose emails
     if [ -f /etc/Muttrc ]; then
         if ! grep -q "set editor=" /etc/Muttrc; then
-            echo 'set editor="vim"' >> /etc/Muttrc
+            echo "set editor=\"$VIM_MUTT_EDITOR\"" >> /etc/Muttrc
         else
-            sed -i 's|set editor=.*|set editor="vim"|g' /etc/Muttrc
+            sed -i "s|set editor=.*|set editor=\"$VIM_MUTT_EDITOR\"|g" /etc/Muttrc
         fi
         for d in /home/*/ ; do
             USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
             if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
                 if [ -f /home/$USERNAME/.muttrc ]; then
                     if ! grep -q "set editor=" /home/$USERNAME/.muttrc; then
-                        echo 'set editor="vim"' >> /home/$USERNAME/.muttrc
+                        echo "set editor=\"$VIM_MUTT_EDITOR\"" >> /home/$USERNAME/.muttrc
                     else
-                        sed -i 's|set editor=.*|set editor="vim"|g' /home/$USERNAME/.muttrc
+                        sed -i "s|set editor=.*|set editor=\"$VIM_MUTT_EDITOR\"|g" /home/$USERNAME/.muttrc
                     fi
                 fi
             fi