Ensure that the edit bar apears on pages where the the OP is editable

In these cases the there is an invisible comment form before the
regular reply form. The editor was being added to that but not the
reply form. This meant that the edit bar would not get coppied to later
reply forms.
Implemented custom keyboard shortcuts for user defined macros

I had  to work around a bug in jQuery 1.6.4 where the Command Key (OS
X) could get incorrectly marked as pressed.