Change include order in Makefile.nmake

If there is an event-config.h in include/event2 (either because we
screwed up packaging like in 2.0.6-rc or because we previously tried
building with mingw and we didn't make distclean in the middle), we
want MSVC to find the one one in WIN32-Code/include/event2 first.

Found by Gilad Benjamini.

Makefile.nmake

@@ -2,7 +2,7 @@
 # tons of important things.  DO NOT RELY ON IT TO BUILD A GOOD LIBEVENT.
 
 # Needed for correctness
-CFLAGS=/Iinclude /Icompat /IWIN32-Code /DWIN32 /DHAVE_CONFIG_H /I.
+CFLAGS=/IWIN32-Code /Iinclude /Icompat /DWIN32 /DHAVE_CONFIG_H /I.
 
 # For optimization and warnings
 CFLAGS=$(CFLAGS) /Ox /W3 /wd4996 /nologo

test/Makefile.nmake

@@ -1,5 +1,5 @@
 
-CFLAGS=/I.. /I../include /I../WIN32-Code /I../compat /DWIN32 /DHAVE_CONFIG_H
+CFLAGS=/I.. /I../WIN32-Code /I../include /I../compat /DWIN32 /DHAVE_CONFIG_H
 
 CFLAGS=$(CFLAGS) /Ox /W3 /wd4996 /nologo