extra option to edit flashvars

[area51@…]

Dynamic movies which use external variables are passed with the Flasvars property of a flashmovie.

For now it can be manually entered as html code using the code-viewer in FCK, but not yet in WYSIWYG mode, which would be a great feature.

[martinkou]

This could be added to riceball's plugin in #382.

[alfonsoml]

#1218 has been marked as dup