[GSoC-PortA] detect v1 'constraints' object and uipgrade to v2 'portfolio object

[Brian G. Peterson]

I got an IM from a portfolio manager in Canada today.

He said:

"I had a fun time exploring new portfolio object on the weekend as I had 
to svn it to my newly formatted laptop. the concept of the portfolio 
object is really powerful, but a lot of code had to be modified for 
backwards compatibility"

Which raises the topic of the subject line.

It seems that we should detect when the user has passed a v1 
'constraints' object into optimize.portfolio, and upgrade it to the v2 
specification.

Thoughts?

Brian

-- 
Brian G. Peterson
http://braverock.com/brian/
Ph: 773-459-4973
IM: bgpbraverock