Update setup script to use ffmanage

setup/mk.sh

 }
 
 eecc() {
-    fff --library-init >& /dev/null \
+    ffmanage --library-init >& /dev/null \
         || die "-----" \
-               "fastfood not installed or fff is not available for $(id -un)." \
+               "fastfood not installed or ffmanage is not available for $(id -un)." \
                "In the latter case try running (only) \`make\` under normal" \
                "user and repeating the \`make install\` again." \
                "-----"
-    local ffood_init=$(fff --library-init)
+    local ffood_init=$(ffmanage --library-init)
     local srcpath dstpath
     find -type f -name '*.in' \
         | while read srcpath;