Fix wierd build problems due to autopoint overwriting gnulib m4

* Makefile.am: List -I m4 first, in ACLOCAL_AMFLAGS
* .gitignore: ignore gnulib/, ChangeLog, *rej, *orig, *#*# (emacs
  temporary files)

.gitignore

@@ -37,3 +37,9 @@ update.log
 tests/*.log
 /GNUmakefile
 /maint.mk
+gnulib/
+*.orig
+*.rej
+*#*#
+*.#*#
+ChangeLog

Makefile.am

@@ -6,7 +6,7 @@ GENHTML = genhtml
 SUBDIRS = gnulib/lib include src qemud tools proxy docs gnulib/tests \
   python tests po examples/domain-events/events-c examples/hellolibvirt
 
-ACLOCAL_AMFLAGS = -I gnulib/m4 -I m4
+ACLOCAL_AMFLAGS = -I m4 -I gnulib/m4
 
 EXTRA_DIST = \
   ChangeLog-old \