BUGS:
    - adjusted matrix is wrong when positive definite!
    - fuckin IE scrollbars don't do visible thing right (maybe full fix?)
    - VmatrixPanel not showing up properly?
    - when All is at zero but others aren't, zero button doesn't do anything

Rhos:
    - resolve fast_excellent problem where the reds don't meet the blues
    - when fixing impossible correlations with 3 assets,
        the sail moves around. I would think the closest would always be
        -.5,-.5,-.5?
        Hmm, yes, it is, but maybe the eigenvectors move around
        randomly in the 2d eigenspace and the result is dependent on them...?
    - should really show the approximate rhos
    - allow switching to disallow when impossible
    - and honor everyRho when creating new assets (maybe; maybe it's fine the
          way it is)
    - selector:
        <> Allow impossible correlations
        <> Fix impossible correlations
        <> Disallow impossible correlations
    - should say possible / barely possible / impossible when something changed
    - should only repaint the rhos status canvas when something changed
    - sort V matrix by decreasing eigenvalues

Controls:
    - fuckin chaos when changing stuff! and don't want to change width at all!
        probably should not destroy and recreate whole rhoPanel, should
        incrementally add and delete from it?
    - textfields for grid intensity, next to sliders
    - arithmetic/log

- make a javafilter program so I don't have to renumber-and-rerun when I get
  an exception
- make a general VecMath.toString that works on any array or matrix
        (XXX I think I have this in VecMath and/or Arrays now... what did I
        need it for?)
- need a better System.out once and for all
- see if the perl -i thing works under cygwin

- document MyPanel smuggling stuff, show melinda?
- allow arithmetic display and calculation?

- implement a better minimizer,
    or at least make it behave better on the boundaries?
    (could check for boundary in the applet,
     and if so, minimize the degenerate problem)
    (or just minimize all possible subproblems
     and take the minimum of the minima)
- get straight on what the stdev is of
- import data, like in that guy from Duke's
- make a single drawing loop function?
- define and find the efficient frontier (corner portfolios! read the chapter)
- allow changing coeffs by dragging lines from left to right? might be
      interesting...
