YUI RTE in MovableTyle v0.9.5

Updated version, please see original post for details.

VERSION NOTES:
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0.9.5 - Nearly at final
    ~ Now uses MT's asset managment as an option (default is on)
    ~ IE7 still throws a wobbly with the toolbar every now and then,
      some times it just lays the alignment buttons in column, other
      times the buttons are all over the place.
    ~ Removed the MT convert_breaks drop down as have built in a HTML
      editor and having this AND the HTML edit function was not compatible.
    ~ Form tags are still removed, but the contents left behind, this can be
      changed easily, let me know.