[cluttermm] .gitignore: Ignore some files, as gtkmm does.

[Murray Cumming <murrayc src gnome org>]

commit fd854a5f2da30d28b9326211d51d760cc3788388
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Mar 21 10:59:53 2014 +0100

    .gitignore: Ignore some files, as gtkmm does.

 .gitignore |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/.gitignore b/.gitignore
index ea10e8a..20ff17c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,8 @@
+# wildcard patterns
+*.[ao]
+*.l[ao]
+*~
+
 .deps/
 .dirstamp
 .libs/