viv: dump QWebView-derived MemCanvas classes to HTML files (Memory View

and FuncGraph View and Symboliks View).  Sadly, we can't currently
easily do this for the CallGraph or Tree Views (eg. Functions, Workspace
Names).  perhaps the TreeViews will be added later.  not sure about
CallGraph, it's a different animal altogether.
i understand the hard-coded, and pixel comments.  i could use a percentage of the window or view.

what do you mean by a "higher 'view' ctx menu item?  do you mean add a submenu to hold this (and probably "refresh", particularly for the FuncGraph view)?  

i don't have a clear direction right now, but i'll move forward with the submenu for now.  let me know if you have a better idea.