More gem updates for nulldb and mail_safe.

.gems

@@ -22,7 +22,7 @@ rspec -v '1.3.0'
 rspec -v '2.0.0'
 gherkin -v '2.1.5'
 cucumber -v '0.8.5'
-mail -v '2.2.4'
+mail -v '2.2.7'
 tzinfo -v '0.3.16'
 i18n -v '0.3.0'
 builder -v '2.1.2'
@@ -33,6 +33,7 @@ rack-mount -v '0.4.0'
 rack-test -v '0.5.0'
 rack -v '1.1.0'
 actionmailer -v '3.0.0'
+actionmailer -v '2.3.9'
 actionmailer -v '2.3.8'
 actionmailer -v '2.3.5'
 actionmailer -v '2.3.4'
@@ -50,6 +51,7 @@ actionmailer -v '2.0.1'
 actionmailer -v '2.0.0'
 actionmailer -v '1.3.6'
 activerecord -v '3.0.0'
+activerecord -v '2.3.9'
 activerecord -v '2.3.8'
 activerecord -v '2.3.5'
 activerecord -v '2.3.4'