I can't find any real reason they are needed at all and were taking
a lot of time to run. Results for the test class

Before: 56 seconds
After: 23 seconds

The #main-menu was used as the entire left column but was having styles
applied to it for the menu which were leaking onto the #sidebar. By
wrapping the column in a unique div the menu styles were isolated from
the sidebar styles.

Based on r6226 from Redmine by Jean-Philippe Lang

Instead of a single email that is sent out with all the recipients as CC/BCC,
each recipient will be delivered their own email. This will let emails to be
customized per user based on their permissions, without exposing private data.

[#388] Custom LDAP filter