revert back to make invoking flex, fix a few bugs

setup.sh

@@ -2,9 +2,19 @@
 
 # RUN ME after pulling the code from git!
 if [ "clean" == "$1" ]; then
-  make distclean
+  make distclean || echo "continuing..."
   rm -rf tmp autom4te.cache config
-  rm -f INSTALL Makefile.in aclocal.m4 configure config.h.in *.gen.c *.gen.h ChangeLog
+  rm -f INSTALL Makefile.in aclocal.m4 configure config.h.in ChangeLog
+  rm -f jv_utf8_tables.gen.h lexer.c lexer.h parser.c parser.h
+elif [ "superclean" == "$1" ]; then
+  ver=$(tr -d '\n' <VERSION)
+  if [ "x${ver}" != "x" ]; then
+    if [ -d jq-${ver} ]; then
+      chmod -R u+w jq-${ver}
+      rm -rf jq-${ver}
+    fi
+    rm -f jq-${ver}.*
+  fi
 else
   autoreconf --install
   ./configure --prefix=/opt/junk