[FIX] Broken link in VS guide
Merge branch 'master' into v1.2
[FIX] RegForm: Social Event intro showing HTML
[MIN] RegForm: Removed unnecessary bindings
[MIN] PEP8
[FIX] RegForm: IE8 'class' bug
[FIX] clearableinput IE9 catch backspace/delete
[IMP] ACL in HTTP API only for managers
[IMP] Add all Emails to allowed list
[FIX] Deletion of VS triggered

- When a Contribution or SessionSlot is deleted