[DOC] wysiwyg: Long overdue update of WYSIWYG help page, mainly removed references to Tiki versions.
As there was only one difference between the html and wiki mode WYSIWYG help they has now been merged into a single tpl (and the wiki specific one removed).
Partially addresses wish4813

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48537 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] modules: "pics" directory was removed in favour of "img" several Tikis ago (don't really understand why $prefs.menus_items_icons is checked here and it triggers a js error but removes the green question mark error icons... more to come i guess)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48539 b456876b-0849-0410-b77d-98878d47e9d5