Add redirect for trunk so that we can point the issues email link to a stable location.

[SVN r39350]

regression/.htaccess

@@ -4,3 +4,4 @@ RewriteEngine on
 
 RewriteRule ^developement(/.*) http://beta.boost.org/development/tests/trunk$1 [R,L]
 RewriteRule ^release(/.*) http://engineering.meta-comm.com/boost-regression/1_34_1$1 [R,L]
+RewriteRule ^trunk(/.*) http://beta.boost.org/development/tests/trunk$1 [R,L]