Revert use of config.h

Revert
7162e8db74
088493d499

And drop AC_CONFIG_HEADERS so that config goes though the command line.
No longer generating config.h, update .gitignore

src/sql/Makefile.am

@@ -2,7 +2,7 @@ lib_LTLIBRARIES	=	libmdbsql.la
 libmdbsql_la_SOURCES=	mdbsql.c parser.y lexer.l 
 libmdbsql_la_LDFLAGS = -version-info 2:0:0 -export-symbols-regex '^mdb_sql_'
 CLEANFILES = parser.c parser.h lexer.c
-AM_CFLAGS	=	$(GLIB_CFLAGS)
+AM_CFLAGS	=	-I$(top_srcdir)/include $(GLIB_CFLAGS)
 LIBS	=	$(GLIB_LIBS)
 libmdbsql_la_LIBADD =	../libmdb/libmdb.la
 YACC = @YACC@ -d

src/sql/mdbsql.c

@@ -16,7 +16,6 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#include "config.h"
 #include <stdarg.h>
 #include "mdbsql.h"