invirt.mit.edu: .htaccess to cancel rewrites from parent dir

/mit/xvm/web_scripts/.htaccess configures mod_rewrite for the use
of trac on xvm.scripts.  We need to disable that.

svn path=/trunk/scripts/invirt.mit.edu/; revision=1847

diff --git a/.htaccess b/.htaccess
new file mode 100755 (executable)
index 0000000..38dcd05
--- /dev/null
+++ b/.htaccess
@@ -0,0 +1 @@
+RewriteEngine Off