[eigen] Repository for experimental code on compact-triangular-storage-based matrices

[Manoj Rajagopalan <rmanoj@xxxxxxxxx>]

Hi Eigen developers,

   I have uploaded some of my initial code on bitbucket: a basic working 
CompactTriangularMatrix implementation is in place and this allows additions. 
It is available from a mercurial checkout from:

    https://rmanoj@xxxxxxxxxxxxx/rmanoj/eigen-rfpf

If you try this and you get an error do let me know - I haven't used bitbucket 
before and I might have to tweak the repo settings.

I'd appreciate tests, comments, patches. If some of you want to join the 
development, let me know!

thanks,
Manoj