rteval: Ignore vim swp files and add a .gitattributes file

Ignore vim swp files, for example when you run git status
and create a .gitattributes so that .gitignore and .gitattributes itself
are not added to archive files

Signed-off-by: John Kacur <jkacur@redhat.com>
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..5966153
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+.gitattributes export-ignore
+.gitignore export-ignore
diff --git a/.gitignore b/.gitignore
index 85e7494..4043947 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,6 +11,7 @@
 *.rpt
 *.xml
 *.o
+*.swp
 Makefile.in
 aclocal.m4
 config.h.in