fit!
continuation
initial crossvalidation code
cross validation works
module
delete test
Merge pull request #1 from vermouthmjl/my_changes

My changes
added huber loss, reg path, cv by iteration, and examples demonstrating their use.
fit and fit! now take keyword arguments
changed default step size rules
delete print statement
typo
much better stepsize rules, particularly for nonuniform observation sparsity
Added requirements
more comments
removed stats requirement --- not used
how to cite
Merge branch 'master' of https://github.com/madeleineudell/LowRankModels.jl
readme updated
added censored data example