[evolution] Add a COPYING-DOCS file, needed for distcheck.

[Matthew Barnes <mbarnes src gnome org>]

commit 3edc53e77ed0dcf30b488f8cc916fd986302589f
Author: Matthew Barnes <mbarnes redhat com>
Date:   Mon Jun 13 12:51:03 2011 -0400

    Add a COPYING-DOCS file, needed for distcheck.
    
    Just references COPYING-DOCS.CCBYSA and COPYING-DOCS.GFDL.

 COPYING-DOCS |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/COPYING-DOCS b/COPYING-DOCS
new file mode 100644
index 0000000..fa28abb
--- /dev/null
+++ b/COPYING-DOCS
@@ -0,0 +1 @@
+See COPYING-DOCS.CCBYSA and COPYING-DOCS.GFDL.