[FIX] validation: Add a new validation rule "email_multi" for email fields that can accept multiple email addresses separated by (default) commas, and deploy on outboundEmail setting on trackers. Sadly keeping the html5 type=email attribute engages the default email validations which does not seem to be removable, so deleting that from the input field (thanks marclaporte)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48887 b456876b-0849-0410-b77d-98878d47e9d5
[MRG] Automatic merge, branches/12.x 48885 to 48887

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@48888 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Remove dead code

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48890 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] Use standard highlight css class for the admin wizard toc selection

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48891 b456876b-0849-0410-b77d-98878d47e9d5
[MRG] Automatic merge, branches/12.x 48887 to 48891

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@48892 b456876b-0849-0410-b77d-98878d47e9d5