include eclipse project files in repo

this is so that the scala paths are correct
adding mcmc version
add 'method' parameter to choose mcmc or em
random generators for dirichlet and discrete dists

uses minka's lightspeed code.
abstract out mcmc sampling steps
fixed some typos: mcmc runs now.
prior on r should be uniform to prevent clipping
.
passed diagnostics for mcmc

and em/mcmc likelihoods look sane
initial commit of java version of nonparametric fastphase
script to wrap java main for np
em should choose parameters maximizing likelihood over restarts.